Opportunities From: Open Space STL

WHAT: 

Take a moment out of your busy schedule and join the Community Stewardship Alliance to remove invasive honeysuckle and winter creeper from the St. Vincent Park woodlands.

WHERE:

St. Vincent Park, 7335 St Charles Rock Rd, St. Louis, MO 63121. Volunteers will meet in the parking lot downhill from the pool.

https://maps.app.goo.gl/U9K3K2eNRXthg3u98

 WHEN: 

9:00 am - 12:00 pm, Saturday, March 7. Volunteer check-in will begin at 8:45 am.  

WHAT TO WEAR:

Clothes, we recommend long pants and sleeves

Sturdy shoes or boots

Dress for the weather!

Sunscreen 

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates.

WHAT:  The north end of Unit 8 (part of Old Trees Area) is becoming choked with bush honeysuckle. But the white oaks, large cottonwoods and sycamore will appreciate the attention, as will the wildlife.

WHERE: Little Creve Coeur Ecological Area 152 River Valley Drive, Chesterfield, MO 63017 Exact location here. 

We will assemble in the parking lot and then carpool to the work area near Highway 141.

 WHEN: Saturday, March 14, 2026. 9am - 12 noon. Volunteer check-in will begin at 15 min before event. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Hand tools will be provided. If you prefer your own power tools, you are welcome to bring them

Sunscreen

Porta potties were present at the South Parking in December. Water for hand washing will be available

Herbicide use is encouraged but is optional; PPE is not optional for volunteers handling herbicide.

Bring a friend. If time and interest we can meet afterward at the Lakehouse Grill

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates

The outfield fence at the city's only public baseball field is covered in invasive plants and could use some tidying up!

Join the Friends of Carondelet Park as we clean up the outfield fence to improve safety and visibility in the outfield.

We will begin with a quick safety and plant identification lesson before we get started. This event will be much simpler than other invasive removal events because we know that we need to clean up the entire fence. Everything must go!

If we have enough volunteers for the baseball field, some may split off and work on removing new honeysuckle sprouts in areas we cleared in 2025.

Snacks and refreshments will be provided.

The baseball field at the Carondelet Park Rec Complex, 930 Holly Hills Ave, St. Louis, MO 63111. Exact location here

Saturday, March 14, 2026, 10am-2pm. Volunteer check-in will begin at 9:45pm.

What: Vent your frustrations on Asian Bush Honeysuckle and remove them from the landscape!

When: Saturday, March 14th, 8:30am-12pm. Volunteer check-in starts at 8:15.

Where: Meet at The Creve Coeur Lakehouse Bar & Grill parking lot. Exact location here.

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

Through the CSA program, Open Space STL and the St. Louis County Department of Parks & Recreation partner to restore and actively manage Laumeier’s native oak woodlands—some of which are more than 100 years old. While often overlooked amid Laumeier’s nationally significant sculpture collection, these woodlands are vital ecological assets now threatened by invasive species, particularly bush honeysuckle.

“Open Space STL and St. Louis County Parks & Recreation are partnering through the Community Stewardship Alliance to restore the native oak woodlands at Laumeier Sculpture Park,” said Dennis Hogan, St. Louis County Department of Parks & Recreation. “These mature oak trees have survived tornadoes, ice storms, and decades of land-use changes, but the woodland ecosystem beneath them is struggling. Invasive honeysuckle is preventing sunlight from reaching native wildflowers and young oak seedlings, disrupting the entire web of life in the park. Oak woodland restoration at Laumeier will be about bringing change back to these woods. To do nothing is not an option. With volunteer effort and long-term commitment, we can begin reclaiming this landscape for native plants and the wildlife that depends on them.”

A Landmark Where Art and Nature Meet

Founded in 1976, Laumeier Sculpture Park is one of the first and largest dedicated sculpture parks in the United States. Located on 98 acres in St. Louis County, Laumeier features more than 70 large-scale outdoor sculptures and serves approximately 360,000 visitors annually. Free and open daily, the park is internationally recognized and accredited by the American Alliance of Museums, operating in partnership with St. Louis County Parks and Recreation.

Beyond its artistic significance, Laumeier’s open spaces and woodlands play a critical environmental role in the region—making stewardship and restoration efforts essential to its future.

WHAT: CSA volunteers will receive focused training to help remove invasive species, support native plant regeneration, and monitor long-term ecological health—work that benefits wildlife, park visitors, and the broader community.

WHERE: Laumeier Sculpture Park, West Entrance, 9050 Rott Rd, Sappington, MO 63127. Exact location here.

Please park in the West Entrance parking lot and follow the “Volunteers” signs to the Moss Shelter (here), where we will meet for orientation.

 WHEN: Saturday, March 14, from 9:00 a.m. – 12:00 p.m. Volunteer check-in will begin at 8:45 a.m.

WHAT TO WEAR:

●     Clothes that you don't mind getting dirty, we recommend long pants and sleeves..

●     Sturdy shoes or boots

●     Dress for the weather!

WHAT TO BRING:

●     A filled bottle of water - we recommend reusable!

●     Tools will be provided, but if you prefer your own, you are welcome to bring them

●     Sunscreen

●     Bug/tick spray, and some will be provided

Registration notes:

·         Work gloves, safety glasses and hand tools provided

●     Pre-registration is encouraged in case of event rescheduling or cancellation

●     This volunteer opportunity is open to ages 13+. Children under 16 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

●     The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

●     Contact Julia Norton at volunteer@laumeier.org with questions.

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT: Help the Community Stewardship Alliance enhance Gravois Creek Conservation Area by pulling invasive plant species and replacing them with new, native ones! Group will be split into 2 with one half pulling garlic mustard, the other half walking around the area looking for species to identify with iNaturalist app. Groups will switch. At the end of morning, we will reseed the pulled area with native seeds.

WHERE: Gravois Greenway at the Mysun Charitable Foundation Trailhead, 4379 Hoffmeister Ave, St. Louis, MO 63125; see map for exact location.

Volunteers will meet and check-in near the tables/bathroom area at the trailhead and then walk approximately 1/3 of a mile down the trail to the access point.

WHEN: Sunday, March 15th, from 1pm to 4pm. Volunteer check-in will begin at 12:45am. 

WHAT TO WEAR:

WHAT TO BRING

Registration notes:

Any questions or difficulty registering? Contact us at volunteer@openspacestl.org or (314) 835-9225. We would love for you to join us!

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT: Welcome the spring by joining us to combat invasive species in our local parks! 

As a part of our Operation Wild Lands program and the Missouri Department of Conservation's Back to Nature STL grant, Open Space STL is partnering with the City of Crestwood and Beautify Crestwood on a series of stewardship events at Crestwood Park. This volunteer opportunity will focus on removing the invasive Bush honeysuckle shrub from the park.

*Due to the steepness of creekbanks, this event is not recommended to young children or those with limited mobility.* 

WHEN: 9am - 12pm, Saturday, March 21st. Volunteer check-in will begin at 8:45 am. 

WHERE: Meet at the Crestwood Park Lower Pavilion, Lindenhurst Dr, St. Louis, MO 63126. Volunteers can park in the lot off Lindenhurst Dr, just behind Long Elementary -- see map for exact location. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

WHAT: On Saturday, March 21, 2026, we continue restoration work with our enthusiastic group and any newcomers to make this a destination for gatherings, small concerts and relaxed personal reflection. The beautiful natural spring, patio and planting areas are just waiting for some tender care.

WHERE: Jefferson Barracks Park, Sylvan Springs Beverage Garden and Amphitheater. Exact location here. Parking is available here.

 WHEN: Saturday, March 21, from 9am to 11pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT: Native Tree Planting in Benton Park

Friends of Benton Park was a 2025-26 recipient of the Missouri Department of Conservation Community Forestry Cost Share Grant. As a recipient, our namesake Benton Park received $25,000 in much needed tree care, including the removal of 7 large trees and the pruning of several others. Trees for removal were identified by a collaborative team of MDC, St. Louis City, and neighborhood partners. These trees are dead or dying, making them hazards to the public who enjoy the park. 

A requirement of this grant is that we plant two new native trees for every tree removed, ensuring our native tree population continues to grow and thrive. We will be planting 14 trees this spring, on March 22, from 9:30am-12pm

Please join us and help us plant these new additions in our beautiful park! We will also mulch existing trees in the park, which helps with water retention, weed suppression, and give a buffer for the lawn mowers to prevent damage to trees.

Tools and gloves will be provided (feel free to bring your own gloves if you have some you like). Please bring water.

WHERE: Exact location here. We will meet on the bridge over the lake. Street parking is available all along Arsenal on the north side of the park (just don’t park at a bus stop where signs indicate “no parking”). 

 WHEN: Sunday, March 22, 2026 from 9:30am-12:00pm. Volunteer check-in will begin at 9:15am

**Inclement weather date will be Sunday, March 29th from 9:30am-12:00pm**

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves.

Sturdy, closed toe shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, feel free to bring your own gloves if you have a pair you like.

Sunscreen

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to individuals 18 and older, who are welcome to bring children with them if supervised. Only register the adult volunteer.

We’re excited to invite you to this opportunity to help beautify Greensfelder Park. Together, we’ll be clearing invasive honeysuckle from the woods near the Dogwood Shelter and trail. This effort will not only enhance the scenic views from this popular spot but also help native species thrive.

WHERE: Greensfelder Park - Dogwood Shelter on Hencken Road. Exact location here.

WHEN: Sunday, March 22 from 9am to 12pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them. Electric Chain saws are ideal for cutting the larger bushes

Bug/tick spray, and some will be provided (may not be necessary depending on the weather)

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 16 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT: Spring cleaning applies to pollinator gardens, too! Join the Community Stewardship Alliance for pollinator garden maintenance at Mallard Lake. There will be varying activities ranging from removing unwanted plants, planting new plants, and general clean-up of the three pollinator gardens.

WHEN: Saturday, March 28th, 8:30-12. Volunteer check-in starts at 8:15.

WHERE: Creve Coeur Lake Memorial Park, near the Lakehouse Bar & Grill, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. The meeting location will be at the parking lot near the gardens - see map for exact location.

WHAT TO WEAR

WHAT TO BRING

Registration notes:

Any questions or difficulty registering? Contact volunteer@openspacestl.org. We would love for you to join us!

Help us plant 120 young whips (tiny trees) in some recently cleared stands in the park. In 2025, we hosted several invasive removal events to rid these areas of honeysuckle, wintercreeper, poison ivy and other unwanted species. Now it's time to establish a healthy habitat.

You will learn why planting very young trees in bulk is the best way to start a young forest.

The southeast corner of Carondelet Park, near the pickleball/tennis courts. The exact location can be found here. Park along Loughborough Dr, inside the park.

Saturday, March 28, 2026 from 10am to noon. Volunteer check-in will begin at 9:45 am.

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

A filled bottle of water - we recommend reusable!

Your favorite shovel, if you have one. We will have some, as well.

Gloves. We will have some, as well.

Sunscreen

Bug/tick spray, and some will be provided.

Pre-registration is encouraged in case of event rescheduling or cancellation.

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates.

WHAT:  The north end of Unit 3 (called Wet Woodland even though it has been dry for years) is becoming choked with bush honeysuckle, and it's up to us to clear it out. The understory ephemerals will appreciate getting more sunlight, as will the wildlife.

WHERE: Little Creve Coeur Ecological Area Pavillion: start at South Parking 152 River Valley Drive, Chesterfield, MO 63017 Exact location here.  We will meet at the pavilion 1/4 mile north of the parking area, drive through the gate, and park at the pavilion.

 WHEN: RESCHEDULED to SUNDAY March 29. Starting tIme moved later, now 10:00 AM to 1PM

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Hand tools will be provided. If you prefer your own power tools, you are welcome to bring them

Sunscreen

Porta potties were present at the South Parking in December, TBD for this date.

Water for hand washing will be available

Herbicide use is encouraged but is optional; PPE is not optional for volunteers handling herbicide

Bring a friend. If time and interest we can meet afterward at the Lakehouse Grill

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates

WHAT: Come join Open Space STL and its community of volunteers as we support Castlewood State Park staff in the removal of invasive Bush honeysuckle from woodlands within the park.

This volunteer efforts is part of OS-STL's Operation Wild Lands program (OWLs), which seeks to aid in the proactive management of public open space, improving wildlife habitat and nature-related outdoor recreation opportunities across the St. Louis region. 

WHEN: 9:00am, Saturday, April 4th. Volunteer check-in will begin at 8:45am. 

WHERE: Castlewood State Park, 1401 Kiefer Creek Rd, Ballwin, MO 63021. Volunteers will meet at Shelter 1, near the playground/picnic area and across from The River Scene Trail. Exact meeting location here. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

WHAT: 

Take a moment out of your busy schedule and join the Community Stewardship Alliance to remove invasive honeysuckle and winter creeper from the St. Vincent Park woodlands.

WHERE:

St. Vincent Park, 7335 St Charles Rock Rd, St. Louis, MO 63121. Volunteers will meet in the parking lot downhill from the pool.

https://maps.app.goo.gl/U9K3K2eNRXthg3u98

 WHEN: 

9:00 am - 12:00 pm, Saturday, April 4. Volunteer check-in will begin at 8:45 am.  

WHAT TO WEAR:

Clothes, we recommend long pants and sleeves

Sturdy shoes or boots

Dress for the weather!

Sunscreen 

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates.

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

We’re excited to invite you to this opportunity to help beautify the newest section of Greensfelder Park off of Forby Road in Eureka. Together, we’ll be clearing invasive honeysuckle along the edge of the native prarie. This effort will not only enhance the scenic views from this popular spot but also help native species thrive.

WHERE: Greensfelder Park - Abe Phillips Trailhead on Forby Road in Eureka. Exact location here.

WHEN: Wednesday, April 8 from 9am to 12pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them. Electric Chain saws are ideal for cutting the larger bushes

Bug/tick spray, and some will be provided (may not be necessary depending on the weather)

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 16 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

Registration for this event is on the Sierra Club EMG website: Sierra Club Cleanup along The Centennial Greenway

SITE GRADE C - Heavy trash.  Heavy brush.  Steep slopes.  Full mobility needed.  Recommended for ages 16 and up.   Sites containing inappropriate trash (condoms, drug paraphernalia) may also be ranked as C even if it is not difficult terrain.

WHAT: Volunteers will clean up the West End Neighborhood, meeting at the St. Vincent Greenway Playground and branching out around the neighborhood

After the clean up, join us at The Audubon Center at Riverlands for our Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9am-11am, Saturday, April 11th. Volunteer check-in will begin at 8:45am. 

WHERE: The Sierra Club EMG is joining Open Space STL for this trash pickup as part of the Open Space STL Annual Confluence Trash Bash!!!

Registration for this event is on the Sierra Club EMG website: Sierra Club Cleanup along The Centennial Greenway

EMG has adopted this 2-mile section of the Centennial Greenway for trash pick-up and will plan for quarterly trash pick ups.

We will meet in the parking lot near Half Price Books on the northeast corner of Delmar and McKnight in University City which is the mid-point of our 2-mile section. Coordinates: 38.6618468, -90.3567087 

Our section of the Greenway extends from Olive Blvd to Shaw Park and we will break into two groups. One group will walk 1-mile north to Olive Blvd and the other will walk 1-mile south to Shaw Park. You will find that you’ll have fun being social with other trash haters during this event.

Bring water-hydration is very important! (Gloves, hand pickers, and garbage sacks will be provided).

Please register and sign the Waiver on the Sierra Club EMG website. Everyone must sign a Waiver.

No need to sign up on the Open Space STL website: Please register for this event on the Sierra Club EMG website: Sierra Club Cleanup along The Centennial Greenway

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty and wet

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

snacks

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

A trash grabber if you have one

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

SITE GRADE C - Moderately strenuous float for more experienced paddlers. 

WHAT: Volunteers will be paddling with Big Muddy Adventures on the Mississippi River to pick trash on the river and along the riverbanks.

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9:00am, Saturday, April 11th. Volunteer check-in will begin at 8:45am. 

WHERE: North Riverfront Park, 10550 Riverview Dr, St. Louis, MO 63137. Volunteers will check-in at the north parking lot - see map for exact location.

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

SITE GRADE C/D - Heavy trash.  Heavy brush.  Steep slopes.  Full mobility needed.  Recommended for ages 16 and up.   Sites containing inappropriate trash (condoms, drug paraphernalia) should also be ranked as C even if it is not difficult terrain. Some areas may be appropriate for experienced volunteers only. Heavy lifting. May involve heavy equipment and power tools.

WHAT: Volunteers will meet at Livingston-Wright Park, then split into groups to remove the trash in sections along the Creek. The St. Ann cleanup up will focus on a portion of the creek 3 miles north/upstream of Lambert Airport that is impacted primarily by urban runoff and trash dumping. Afterward, all volunteers are invited to a celebration picnic at St. Ann Park from 11am-1pm!

This site also includes Storm Drain Marking, for any volunteers who are interested. Storm Draining Marking provides a visible reminder of the impact of improper waste disposal, and helps communicate to the community that storm drains can carry pollution to area rivers and streams. As a storm drain marking volunteer, you will be provided with a map and all the supplies to mark the location of storm drains, helping to maintain the health of our area waterways.

SITE LEADERS: Stacy Arnold, Anna Carreon, and Ryan Meyer

WHEN: 9am-11am, Saturday, April 11th. Volunteer check-in will begin at 8:45am. 

WHERE: Volunteers will meet at Livingston-Wright Park at 3850 Wright Ave., St. Ann, MO 63074. see map for exact location.

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty and wet

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

snacks

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

A trash grabber if you have one

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

SITE GRADE A - Flat, open. Suitable for all ages and with some limited mobility.

SITE GRADE B - Possibilities for unsafe items trash items such as drug paraphernalia, glass, etc. 

SITE LEADER: Marvin Crumer

WHAT: Volunteers will clean up in and around the tennis court area at St. Cyr Park in Bellefontaine Neighbors. In addition to cleaning up trash from the area, volunteers will also work together to remove honeysuckle from the tennis courts, taking the initial steps in revitalizing the courts for future use!

WHEN: 9:00am, Saturday, April 11th. Volunteer check-in will begin at 8:45am. 

WHERE: St. Cyr Park, 1105 St Cyr Rd, St. Louis, MO 63137. See map for exact location.

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

SITE GRADE C - Heavy trash.  Heavy brush.  Steep slopes.  Full mobility needed.  Recommended for ages 16 and up.   Sites containing inappropriate trash (condoms, drug paraphernalia) may also be ranked as C even if it is not difficult terrain.

WHAT: Volunteers will be paddling with The Mississippi River Water Trail Association in Ellis Bay, a calm backwater of the Mississippi River to pick trash on the river and along the riverbanks. Ellis Bay has calm waters, and is an excellent spot for a beginning paddler!

This is a Picnic Pavilion shoreline and water cleanup with The Mississippi River Water Trail Association via kayaks – space will be limited to adhere to safety boating regulations. MRWTA will provide wet suits for paddlers.

Site may have exposure to biohazards, sharps, stinging/biting insects, poison ivy (Ellis Island only), etc.

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 8:30am - 11:30am am, Saturday, April 11th. Volunteer check-in will begin at 8:15am. 

WHERE: 301 Riverlands Way, West Alton, MO 63386. Volunteers will check-in at The Audubon Center - see map for exact location.

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty and wet

Sturdy close-toed shoes or waterproof boots

Hat & sunscreen

The water trail will provide wet suits to participants.

WHAT TO BRING:

A filled water bottle - we recommend reusable!

snacks

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

A trash grabber if you have one

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

For this cleanup site, pre-registration is required. 

SITE GRADE A/B - Flat, open. Suitable for all ages and with some limited mobility. Some areas maybe have steeper slopes and some brush, and are recommended for people with full mobility. 

WHAT: Volunteers will clean up green spaces near the Bridgeton Government Center; everyone will meet at the gov. center and split up into three sites around St. Charles Rock Rd. and Natural Bridge Rd. This area contains both dry land and creek sections. Boots or waders are recommended for any volunteers who would like to get in the creek.

Check out this map for the meeting location and cleanup sites for this year. 

WHEN: 9:00am, Saturday, April 11th. Volunteer check-in will begin around 8:30am.

WHERE: Bridgeton Government Center, 12355 Natural Bridge Rd, Bridgeton, MO 63044 -- See map for exact meeting location.

For the clean up, park at Fazoli's, 12341 St Charles Rock Rd, Bridgeton, MO 63044. Exact location here. 

After the clean up, join us at The Audubon Center at Riverlands for our Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty and wet

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

snacks

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

A trash grabber if you have one

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

SITE GRADE B - Some Slopes. Some Brush. Recommended for ages 9 and up. Full mobility suggested.

WHAT: Volunteers will cleanup areas around Christian Retention Pond in Spanish Lake County Park. Most clean up opportunities in this area will be on land, but there will also be canoes available for a water clean up. Because this is a lake and the area can be very muddy, volunteers may want to wear waterproof rubber boots.

After the clean up, please join us at The Audubon Center at Riverlands for our Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate your efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9:00am, Saturday, April 11th. Volunteer check-in will begin around 8:45am.

WHERE: Spanish Lake County Park, 12500 Spanish Pond Road, 63138. Volunteers will check-in at the parking lot off Trampe Rd. - see map for exact location. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

SITE GRADE A/B - Some flat areas along a pathway. Some slopes. Some brush.

WHAT: Volunteers will be cleaning up areas in Musick Park and the surrounding area. This site will be led by the Hazelwood Green Committee.

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9:00am, Saturday, April 11th. Volunteer check-in will start around 8:45am.

WHERE: Musick Park, 8617 Latty Ave, Hazelwood, MO 63042. Volunteers will meet at the Lower Parking Lot - see map for exact location. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

SITE GRADE C - Heavy trash.  Heavy brush.  Steep slopes.  Full mobility needed.  Recommended for ages 16 and up.   Sites containing inappropriate trash (condoms, drug paraphernalia) should also be ranked as C even if it is not difficult terrain.

WHAT: Volunteers will clean up Ellis Island. Everyone will meet at The Audubon Center and and travel from the parking lot access from Riverlands Way. This may require a walk/hike on gravel and dirt paths up to 2 miles if desired.

Site may have exposure to biohazards, sharps, stinging/biting insects, poison ivy (Ellis Island only), etc.

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 8:30-11:30am, Saturday, April 11th. Volunteer check-in will begin at 8:15am. 

WHERE: 301 Riverlands Way, West Alton, MO 63386. see map for exact location.

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty and wet

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

snacks

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

A trash grabber if you have one

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

SITE GRADE A - Flat, open area, suitable for all ages with some limited mobility.

WHAT: Join the members of Fairground Park for All as we clean up Fairground Park together! Pick up litter as you stroll around the beautiful park grounds, making it a better place to walk, run, and play! Help remove trash from the roller rink, the lakes, and the grounds surrounding such iconic areas as the old Bear Pits and the swimming pool! The roller rink DJ may be on hand to keep you going with music all morning!

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9-11am, Saturday, April 11th. Volunteer check-in will begin at 8:45 am.

WHERE: Meet at the Fairground Park Playground, exact location here. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

SITE GRADE A/B - Some flat areas along a pathway. Some slopes. Some brush.

WHAT: Volunteers will cleaning areas along the Mississippi Greenway and River, near the Mary Meachum Freedom Crossing memorial. This is a land-based cleanup. Volunteers will receive a t-shirt for participating in Confluence Trash Bash!

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9:00am, Saturday, April 11th. Volunteer check-in will begin at 8:45 am.

WHERE: Mary Meachum Freedom Crossing, St Louis Riverfront Trail, St. Louis, MO 63147. Volunteer check-in will be near the Mary Meachum Visitor Center: see map for exact location.

WHAT TO WEAR:

Dress for the weather

Wear clothes that can get dirty

Closed-toe, sturdy shoes or boots

Hat & sunscreen

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Bug spray

 REGISTRATION NOTES: 

SITE GRADE A - Flat, open. Suitable for all ages and with some limited mobility.

WHAT: Volunteers will meet at the Lakehouse Bar and Grill parking lot and split into groups to clean up areas on land around Mallard Lake and down the trail to Creve Coeur Creek. 

After the clean up, join us at The Audubon Center at Riverlands for our Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family! We'll also have a trash contest!. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 8:30am-12pm, Saturday, April 11th. Volunteer check-in will begin around 8:15am. 

WHERE: Mallard Lake, Creve Coeur Lake Memorial Park, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. Check-in will be at the Lakehouse Bar and Grill parking lot - see map for exact location.

WHAT TO WEAR:

WHAT TO BRING:

SITE GRADE B/C - Some Slopes. Some Brush. Recommended for ages 9 and up. Full mobility suggested. Some areas may have heavy trash, steep/muddy slopes, and heavy brush.

WHAT: Volunteers will be cleaning up areas in Sunset Park, overlooking the Missouri River. Behold the beauty of the river while you clean up the park area and the riverbank!

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9-11am, Saturday, April 11th. Volunteer check-in will begin at 8:45am.

WHERE: Sunset Park, 2300 Sunset Park Dr, Florissant, MO 63031 - see map for exact location. Volunteers will be meeting at the lower parking lot.

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

We encourage volunteers to pre-register, but walk-ups are always welcome.

T-shirts are on a first come, first served basis. Some sizes may not be available for volunteers.  If this site does not have enough t-shirts, come to the picnic to see if more are available there.

SITE GRADE B/C - some slopes, some brush, recommended for ages 9 and up, complete mobility is needed. Some areas may have heavy trash and heavy brush.

WHAT: Volunteers will clean along the Ted Jones Trail, parking on Woodstock Ave and picking up trash along the trail toward highway 70. Be prepared to walk! The trail is paved, but it is a long way. Golf Carts will be provided St. Louis County Parks to help volunteers transport trash!

After the clean up, join us atThe Audubon Center at Riverlands for the Watershed Picnic and Festival andPassport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted byOpen Space STL,The Audubon Center at Riverlands, andThe Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9-11am, Saturday, April 11th. Volunteer check-in will begin at 8:45am.

WHERE: The Ted Jones Trail parking lot on Woodstock Ave - see map for exact location. The exact address is 139 Woodstock Rd, Normandy, MO 63135.

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

We encourage volunteers to pre-register, but walk-ups are always welcome.

T-shirts are on a first come, first served basis. Some sizes may not be available for volunteers.  If this site does not have enough t-shirts, come to the picnic to see if more are available there.

SITE GRADE C - Heavy trash, Heavy brush & debris. Complete mobility is needed. Recommended for ages 16+

WHAT: Volunteers will clean the neighborhood area around the old Cementland/cement factory area, across from the South entrance of North Riverfront Park. While volunteers will not enter Cementland directly, the cleanup will occur around the perimeter of the property. This cleanup is led by The St. Louis Cleanup Crew and The Chain of Rocks Community Association. Everyone deserves a clean, litter-free neighborhood. Come out and help us clean up this area, so that the people who live, work, and play here can enjoy trash-free lives!

After the clean up, join us at The Audubon Center at Riverlands for the Watershed Picnic and Festival and Passport to Clean Water educational event from 11am - 2pm to celebrate our efforts and hard work! The festival will be hosted by Open Space STL, The Audubon Center at Riverlands, and The Army Corps of Engineers, and will feature free food, drinks, and activities for the whole family!

We'll also have a trash contest for all clean up participants. Did you find the biggest trash? The weirdest trash? The most bottles of Fireball? Bring them to the picnic for bragging rights... and prizes!

WHEN: 9-11am, Saturday, April 11th. Volunteer check-in will begin at 8:45am.

WHERE: The cleanup will take place along the perimeter of the old Cementland/Cement Factory. Volunteers can park at the South Entrance of North Riverfront Park, 9400 Riverview Dr, St. Louis, MO 63137  - see map for exact location. 

WHAT TO WEAR:

Dress for the weather

Wear clothes that you don't mind getting dirty

Sturdy closed-toe shoes or waterproof boots

Hat & sunscreen

WHAT TO BRING:

A filled water bottle - we recommend reusable!

Insect repellant, if preferred

Sturdy gloves, if you prefer your own

REGISTRATION NOTES:

The annual OS-STL liability waiver must be signed before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

We encourage volunteers to pre-register, but walk-ups are always welcome.

T-shirts are on a first come, first served basis. Some sizes may not be available for volunteers.  If this site does not have enough t-shirts, come to the picnic to see if more are available there.

WHAT: Come join Open Space STL and its community of volunteers as we support Castlewood State Park staff in the removal of invasive Bush honeysuckle from woodlands within the park.

This volunteer efforts is part of OS-STL's Operation Wild Lands program (OWLs), which seeks to aid in the proactive management of public open space, improving wildlife habitat and nature-related outdoor recreation opportunities across the St. Louis region. 

WHEN: 9:00am, Saturday, April 18th. Volunteer check-in will begin at 8:45am. 

WHERE: Castlewood State Park, 1401 Kiefer Creek Rd, Ballwin, MO 63021. Volunteers will meet at Shelter 1, near the playground/picnic area and across from The River Scene Trail. Exact meeting location here. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

WHAT: Spring cleaning applies to pollinator gardens, too! Join the Community Stewardship Alliance for pollinator garden maintenance at Mallard Lake. There will be varying activities ranging from removing unwanted plants, planting new plants, and general clean-up of the three pollinator gardens.

WHEN: Saturday, April 18th, 8:30-12. Volunteer check-in starts at 8:15.

WHERE: Creve Coeur Lake Memorial Park, near the Lakehouse Bar & Grill, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. The meeting location will be at the parking lot near the gardens - see map for exact location.

WHAT TO WEAR

WHAT TO BRING

Registration notes:

Any questions or difficulty registering? Contact volunteer@openspacestl.org. We would love for you to join us!

WHAT: On Saturday, April 18, 2026, we continue restoration work with our enthusiastic group and any newcomers to make this a destination for gatherings, small concerts and relaxed personal reflection. The beautiful natural spring, patio and planting areas are just waiting for some tender care.

WHERE: Jefferson Barracks Park, Sylvan Springs Beverage Garden and Amphitheater. Exact location here. Parking is available here.

 WHEN: Saturday, April 18, from 9am to 11pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT: Come join Open Space STL and its community of volunteers as we support Castlewood State Park staff in the removal of invasive Bush honeysuckle from woodlands within the park.

This volunteer efforts is part of OS-STL's Operation Wild Lands program (OWLs), which seeks to aid in the proactive management of public open space, improving wildlife habitat and nature-related outdoor recreation opportunities across the St. Louis region. 

WHEN: 9:00am, Thursday, April 30th. Volunteer check-in will begin at 8:45am. 

WHERE: Castlewood State Park, 1401 Kiefer Creek Rd, Ballwin, MO 63021. Volunteers will meet at Shelter 1, near the playground/picnic area and across from The River Scene Trail. Exact meeting location here. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES:

WHAT: 

Take a moment out of your busy schedule and join the Community Stewardship Alliance to remove invasive honeysuckle and winter creeper from the St. Vincent Park woodlands.

WHERE:

St. Vincent Park, 7335 St Charles Rock Rd, St. Louis, MO 63121. Volunteers will meet in the parking lot downhill from the pool.

https://maps.app.goo.gl/U9K3K2eNRXthg3u98

 WHEN: 

9:00 am - 12:00 pm, Saturday, May 2. Volunteer check-in will begin at 8:45 am.  

WHAT TO WEAR:

Clothes, we recommend long pants and sleeves

Sturdy shoes or boots

Dress for the weather!

Sunscreen 

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates.

What: Vent your frustrations on Asian Bush Honeysuckle and remove them from the landscape!

When: Saturday, May 2nd, 8:30am-12pm. Volunteer check-in starts at 8:15.

Where: Meet at The Creve Coeur Soccer Field, 2350 Creve Coeur Mill Rd, St. Louis, MO 63146. Park in the lot near the lake, exact location here.

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

Join us in Benton Park the morning of May 2nd to give our two native garden beds some much needed love after a long winter and early spring. We wait to do work on these beds until May to allow the insects who have overwintered in the leaves and plant stalks to wake up and find their new homes. 

We have two native gardens in the park; one is located at the corner of Jefferson and Arsenal and is in the middle of being revitalized, and the second is a brand new garden planted last October at Missouri and Arsenal, with the help of a grant from Brightside STL.

We will plan to weed, cut back old stalks, mulch, and water. 

WHERE: We will meet here, and the intersection of Missouri and Arsenal. There is plenty of street parking along Arsenal, but please be mindful not to park in bus zones. 

WHEN: Saturday, May 2, 2026 from 9:30am-12:00pm. Volunteer check-in will begin at 9:15am.

**(Inclement weather date will be Saturday, May 9th 9:30am-12:00pm)**

WHAT TO BRING: 

Registration notes:

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

We’re excited to invite you to this opportunity to help beautify the newest section of Greensfelder Park off of Forby Road in Eureka. Together, we’ll be clearing invasive honeysuckle along the edge of the native prarie. This effort will not only enhance the scenic views from this popular spot but also help native species thrive.

WHERE: Greensfelder Park - Abe Phillips Trailhead on Forby Road in Eureka. Exact location here.

WHEN: Wednesday, May 6 from 9am to 12pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them. Electric Chain saws are ideal for cutting the larger bushes

Bug/tick spray, and some will be provided (may not be necessary depending on the weather)

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 16 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

What: Mallard Lake has a collection of invasives and aggressives along its shoreline, we want to get rid of some of them.

When: Saturday, May 9th, 8:30am-12pm. Volunteer check-in starts at 8:15.

Where: Meet at The Creve Coeur Lakehouse Bar & Grill parking lot. Exact location here.

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

-Volunteers of all ages are welcome
-Children under 13 must be accompanied by an adult
-Volunteers 18 and under may not handle herbicides
-A signed OSC Liability Waiver is required prior to participation.

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT:  The field just north of the South Parking has been the location of several prior tree-planting events. However, the trees are becoming choked with vines and Johnson grass that we need to clear out for the park's benefit. These trees will appreciate the attention as will the wildlife who benefit from their acorns and fruit.

WHERE: Little Creve Coeur Ecological Area 152 River Valley Drive, Chesterfield, MO 63017 Exact location here.  We will assemble at the South Parking lot.

 WHEN: Saturday, May 16, 2026. 9am - 12 noon. Volunteer check-in will begin at 15 min before event. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Hand tools will be provided. If you prefer your own power tools, you are welcome to bring them

Sunscreen

Porta potties are expected at the South Parking. Water for drinking and hand washing will be available

Herbicide use is optional; PPE is not optional for volunteers using herbicide.

Bring a friend. If time and interest we can meet afterward at the Lakehouse Grill

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates

WHAT: Spring cleaning applies to pollinator gardens, too! Join the Community Stewardship Alliance for pollinator garden maintenance at Mallard Lake. There will be varying activities ranging from removing unwanted plants, planting new plants, and general clean-up of the three pollinator gardens.

WHEN: Saturday, May 16th, 8:30-12. Volunteer check-in starts at 8:15.

WHERE: Creve Coeur Lake Memorial Park, near the Lakehouse Bar & Grill, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. The meeting location will be at the parking lot near the gardens - see map for exact location.

WHAT TO WEAR

WHAT TO BRING

Registration notes:

Any questions or difficulty registering? Contact volunteer@openspacestl.org. We would love for you to join us!

WHAT: On Saturday, May 16, 2026, we continue restoration work with our enthusiastic group and any newcomers to make this a destination for gatherings, small concerts and relaxed personal reflection. The beautiful natural spring, patio and planting areas are just waiting for some tender care.

WHERE: Jefferson Barracks Park, Sylvan Springs Beverage Garden and Amphitheater. Exact location here. Parking is available here.

 WHEN: Saturday, May 16, from 9am to 11pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

We are going to remove the non-native shrubs that run along Creve Coeur Mill Road in front of the Lakehouse Bar and Grill, and at our next event we will replace them with native shrubs.

When: Saturday, May 23rd, 8:30am-12pm. Volunteer check-in starts at 8:15.

Where: Meet at The Creve Coeur Lakehouse Bar & Grill parking lot. Exact location here.

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

We’re excited to invite you to this opportunity to help beautify the newest section of Greensfelder Park off of Forby Road in Eureka. Together, we’ll be clearing invasive honeysuckle along the edge of the native prarie. This effort will not only enhance the scenic views from this popular spot but also help native species thrive.

WHERE: Greensfelder Park - Abe Phillips Trailhead on Forby Road in Eureka. Exact location here.

WHEN: Sunday, May 24 from 9am to 12pm. Volunteer check-in will begin at 8:45am. 

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them. Electric Chain saws are ideal for cutting the larger bushes

Bug/tick spray, and some will be provided (may not be necessary depending on the weather)

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 16 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

We are going to plant native shrubs along Creve Coeur Mill Road in front of the Lakehouse Bar and Grill, replacing the non-native burning bush shrubs.

When: Saturday, May 30th, 8:30am-12pm. Volunteer check-in starts at 8:15.

Where: Meet at The Creve Coeur Lakehouse Bar & Grill parking lot. Exact location here.

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

WHAT: Take a moment out of your busy schedule and join Community Stewardship Alliance for a walk to the Gravois Creek Conservation Area and discover the noises of dusk and early night!  We'll walk about a mile listening for the insects, frogs, and birds. We will also look for lightning bugs and bats.

WHERE: Gravois Greenway at the Mysun Charitable Foundation Trailhead, 4379 Hoffmeister Ave, St. Louis, MO 63125; see map for exact location. Volunteers will meet and check-in near the tables/bathroom area at the trailhead and then walk along Grant's Trail. 

WHEN: 8:00 PM - 9:00 PM, Friday, June 5th. Volunteer check-in will begin at 7:45 PM. 

WHAT TO WEAR:

WHAT TO BRING

Registration notes:

WHAT: 

Take a moment out of your busy schedule and join the Community Stewardship Alliance to remove invasive honeysuckle and winter creeper from the St. Vincent Park woodlands.

WHERE:

St. Vincent Park, 7335 St Charles Rock Rd, St. Louis, MO 63121. Volunteers will meet in the parking lot downhill from the pool.

https://maps.app.goo.gl/U9K3K2eNRXthg3u98

 WHEN: 

9:00 am - 12:00 pm, Saturday, June 6. Volunteer check-in will begin at 8:45 am.  

WHAT TO WEAR:

Clothes, we recommend long pants and sleeves

Sturdy shoes or boots

Dress for the weather!

Sunscreen 

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates.

Help us maintain and keep these demonstration pollinator gardens beautiful!

WHAT:  Join the Community Stewardship Alliance for pollinator garden maintenance at Mallard Lake. There will be varying activities ranging from removing unwanted plants, planting new plants, and general clean-up of the three pollinator gardens.

WHEN: Saturday, June 6th, 8:30-12. Volunteer check-in starts at 8:15.

WHERE: Creve Coeur Lake Memorial Park, near the Lakehouse Bar & Grill, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. The meeting location will be at the parking lot near the gardens - see map for exact location.

WHAT TO WEAR

WHAT TO BRING

Registration notes:

Any questions or difficulty registering? Contact volunteer@openspacestl.org. We would love for you to join us!

Let's collect and examine bees from the prairies around the Lakehouse

When: Saturday, July 11th, 8:30am-12pm. Volunteer check-in starts at 8:15.

Where: Meet at The Creve Coeur Lakehouse Bar & Grill parking lot. Exact location here.

WHAT TO WEAR:

Clothes that you don't mind getting dirty, we recommend long pants and sleeves, as well as closed toe shoes.

Sturdy shoes or boots

Dress for the weather!

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

Help us maintain and keep these demonstration pollinator gardens beautiful!

WHAT:  Join the Community Stewardship Alliance for pollinator garden maintenance at Mallard Lake. There will be varying activities ranging from removing unwanted plants, planting new plants, and general clean-up of the three pollinator gardens.

WHEN: Saturday, July 25th, 8:30-12. Volunteer check-in starts at 8:15.

WHERE: Creve Coeur Lake Memorial Park, near the Lakehouse Bar & Grill, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. The meeting location will be at the parking lot near the gardens - see map for exact location.

WHAT TO WEAR

WHAT TO BRING

Registration notes:

Any questions or difficulty registering? Contact volunteer@openspacestl.org. We would love for you to join us!

Help us maintain and keep these demonstration pollinator gardens beautiful!

WHAT:  Join the Community Stewardship Alliance for pollinator garden maintenance at Mallard Lake. There will be varying activities ranging from removing unwanted plants, planting new plants, and general clean-up of the three pollinator gardens.

WHEN: Saturday, August 29th, 8:30-12. Volunteer check-in starts at 8:15.

WHERE: Creve Coeur Lake Memorial Park, near the Lakehouse Bar & Grill, 2160 Creve Coeur Mill Rd, St. Louis, MO 63146. The meeting location will be at the parking lot near the gardens - see map for exact location.

WHAT TO WEAR

Dress for the weather, in clothes you don't mind getting dirty

Closed-toe shoes

WHAT TO BRING

Water bottle

Your own work gloves/tools if preferred

Sunscreen

Bug spray

If you have a trowel, knee pads, or kneeling pads you can bring those, too but tools are provided

Registration notes:

The annual OS-STL liability waiver must be signed and approved before a volunteer can register for this cleanup opportunity. To see if you have met this qualification, please view your profile here.

Pre-registration is encouraged, but walk-ups are welcome

This volunteer opportunity is fun and open to all ages. Children under 13 may volunteer only if accompanied by a parent or legal guardian. 

Any questions or difficulty registering? Contact volunteer@openspacestl.org. We would love for you to join us!

WHAT: 

Take a moment out of your busy schedule and join the Community Stewardship Alliance to remove invasive honeysuckle and winter creeper from the St. Vincent Park woodlands.

WHERE:

St. Vincent Park, 7335 St Charles Rock Rd, St. Louis, MO 63121. Volunteers will meet in the parking lot downhill from the pool.

https://maps.app.goo.gl/U9K3K2eNRXthg3u98

 WHEN: 

9:00 am - 12:00 pm, Saturday, October 5. Volunteer check-in will begin at 8:45 am.  

WHAT TO WEAR:

Clothes, we recommend long pants and sleeves

Sturdy shoes or boots

Dress for the weather!

Sunscreen 

WHAT TO BRING: 

A filled bottle of water - we recommend reusable!

Tools will be provided, but if you prefer your own, you are welcome to bring them

Sunscreen

Bug/tick spray, and some will be provided

Registration notes:

Pre-registration is encouraged in case of event rescheduling or cancellation

This volunteer opportunity is open to all ages. Children under 13 may volunteer only if accompanied by a parent or guardian and those 18 or under may not participate in herbicide application.

The annual OSC liability waiver must be signed and approved before a volunteer can register for this opportunity. To see if you have met this qualification, please view your profile here.

In the event of severe weather, this event will be canceled. Volunteers will be notified via email and are encouraged to check our Facebook page (Open Space STL) for updates.

WHAT: Come join Open Space STL and its community of volunteers as we support Castlewood State Park staff in the removal of invasive Bush honeysuckle from woodlands within the park.

This volunteer efforts is part of OS-STL's Operation Wild Lands program (OWLs), which seeks to aid in the proactive management of public open space, improving wildlife habitat and nature-related outdoor recreation opportunities across the St. Louis region. 

WHEN: 9:00am, Saturday, October 1st. Volunteer check-in will begin at 8:45am. 

WHERE: Castlewood State Park, 1401 Kiefer Creek Rd, Ballwin, MO 63021. Volunteers will meet at Shelter 1, near the playground/picnic area and across from The River Scene Trail. Exact meeting location here. 

WHAT TO WEAR:

WHAT TO BRING:

REGISTRATION NOTES: