Capital Nature

National Native Seed Conference (Virtual)
2026-02-25 - 2026-02-26 | DC
(US) (Institute for Applied Ecology)The 2026 National Native Seed Conference is dedicated to the science, practice, and policy of producing and effectively using native seed. Join us for this two-day virtual conference designed to:

Provide opportunities for attendees to explore new ideas
Share success stories and lessons learned
Connect and collaborate with colleagues across the country

Invasive Vine Removal at Bladensburg
2026-02-25 09:00 - 12:00 (America/New_York) | Publick Playhouse, 5445 Landover Rd, Hyattsville, 20784, United States
(MD) (Casey Trees) Join Meredith from Chesapeake Climate Action Network and the Community Native Planting Project to remove Invasive Vines. We will start with a brief training on invasive species and best practices for removal, and spend about 2 hours removing invasives.

Rain Garden Workshop (Hybrid)
2026-02-28 09:30 - 12:00 | DC
(VA) (Northern Virginia Regional Commission) Rain gardens are attractive landscape features that allow rain water and snow melt to absorb into the ground, slowing runoff and removing pollutants before the water reaches local creeks and streams. You will learn how to design, construct, and maintain a rain garden for your property that can absorb rain water, improve wildlife habitat, and support the health of waterways and drinking water supplies.

Eco-Teen Challenge
2026-02-28 10:00 - 11:30 | Black Hill Discovery Center, 20926 Lake Ridge Drive, Boyds, MD, 20841, United States
(MD) (Montgomery Parks) In this series, we’ll complete STEM challenges while learning about our local ecosystems. Discover how our local watersheds support wildlife and explore how our everyday actions affect these vital ecosystems. Then, dive into a hands-on STEM activity by building your own water filter!

Invasive Plants Removal at Dyke Marsh
2026-02-28 10:00 - 12:00, 2026-03-14 10:00 - 12:00 | Dyke Marsh, Alexandria, VA, 22307, United States
(VA) (Friends of Dyke Marsh) Help protect native plants by pulling and clipping invasive plants. We will train volunteers to identify the five or so target plants. We kindly ask that you not bring pets. Invasive plants can threaten and outcompete native plants. Bring gloves, hand clippers and water. We will supply instructions, examples and trash bags.

Invasive Plant Removal at Piney Branch
2026-02-28 10:00 - 12:00 | Piney Branch Oasis, 3499 Mt Pleasant St NW, Washington, 20010, United States
(DC) (Rock Creek Conservancy) Join Rock Creek Conservancy and the National Park Service for this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory. Event location, directions, and information will be sent from the event leader 48 hours prior to the event.

Invasive Vine Removal at Riverdale
2026-02-28 10:00 - 13:00 | Riverside Drive Park, 5801 Riverside Drive, Riverdale, 20737, United States
(MD) (Casey Trees) Join Chesapeake Climate Action Network volunteer leaders from the Riverdale Park Green Team to remove Invasive Vines around around the Riverdale Park neighborhood.. This event will be a fun mix of door-to-door canvassing and invasive vine removal.

The Amazing World of Vernal Pools (Virtual)
2026-03-01 14:00 - 15:00 | DC
(Capital Nature) (DC) Join Capital Nature and vernal pool champions Mike Hayslett and Steven David Johnson for this special presentation on the temporary freshwater wetlands that emerge after snowmelt. Often overlooked as habitats because of their small size, they are essential spawning grounds for spotted salamanders, wood frogs, fairy shrimp, and many other creatures! Mike will discuss the ecology and conservation needs of these unique ecosystems. Steven will share his spectacular photographs of vernal pool life.

Ecology Book Club: We Will Be Jaguars
2026-03-09 18:00 - 19:30 | Cleveland Park Library, 3310 Connecticut Ave. NW, Washington, 20008, United States
(DC) (DC Public Library) Join book and ecology lovers at Cleveland Park Library to explore books on human ecology, sustainable living, environmental justice and post-fossil fuel futures. Books can be nonfiction, fiction or poetry. This month we will be discussing We Will Be Jaguars: A Memoir of My People by Nemonte Nenquimo and Mitch Anderson. Adults.

Our Watershed
2026-03-11 18:00 - 19:30 | Tenleytown Library, 4450 Wisconsin Ave NW, Washington, DC, 20016, United States
(DC) (Rock Creek Conservancy) Join Stream Team Leaders Kathy Sykes and Andrea Contreras for an engaging presentation on the Lower Rock Creek watershed and why its health matters to our community. This talk will explore what a watershed is, how everyday activities impact local streams, and the key indicators of a healthy watershed—from salt and bacteria levels to biodiversity and aquatic life.

Invasive Plant Removal at 630 East
2026-03-14 10:00 - 12:00 | Reservation 630 East, 2801 Quebec Street Northwest, Washington, 20008
(DC) (Rock Creek Conservancy) Join Rock Creek Conservancy and Weed Warrior leader Rena Subotnik or this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory. Event location, directions, and information will be sent from the event leader 48 hours prior to the event.

Invasive Plant Removal at Broad Branch
2026-03-14 10:00 - 12:00 | DC

Invasive Plant Removal at 630 West
2026-03-15 10:00 - 12:00 | Reservation 630 West, 3031 Sedgwick Street Northwest, Washington, DC, 20008, United States
(DC) (Rock Creek Conservancy) Join Rock Creek Conservancy, the National Park Service, and Weed Warrior Leader Kathy Sykes for this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory. Event location, directions, and information will be sent from the event leader 48 hours prior to the event.

Weed Warrior Info Session
2026-03-18 18:00 - 19:00 | DC
(DC) (Rock Creek Conservancy) Join us for an information session about our upcoming Weed Warrior training. This session is for individuals who would like to learn about the Weed Warrior Program and what it means to be a Weed Warrior at one of Rock Creek Conservancy’s Mini Oasis Sites. We’ll discuss the commitment involved, the type of work you’ll take on, and the impact you can have on the health of Rock Creek Park. Whether you’re new to invasive plant work or looking to deepen your involvement, this is a great opportunity to ask questions and see if the program is the right fit for you.

DC Environmental Film Festival
2026-03-19 - 2026-03-28 | DC
(DMV) (DC Environmental Film Festival) This year’s festival is dedicated to amplifying the unwavering voices of those who press on in defense of our planet, even in the face of significant challenges. This year’s programs will spotlight powerful stories of innovation and action — while forging partnerships with local and national organizations leading the fight for a better future. The work can’t stop when there are important stories waiting to be told.

Invasive Plant Removal at Picnic Grove 6
2026-03-20 10:00 - 12:00 | DC
(DC) (Rock Creek Conservancy) Help the National Capital Region Invasive Plant Management Team and Rock Creek Park remove invasive species at Picnic Grove 6! We will remove invasive Lonicera japonica (vine honeysuckle), Ampelopsis brevipedunculata (porcelain berry), Rubus phoniculaceous (wineberry), and other invasive shrubs and vines. Our goal is to remove these plants to make room for native flora and fauna in this area.

Invasive Vine Removal at Catholic U
2026-03-20 14:30 - 16:30, 2026-04-01 15:30 - 17:30 | Catholic Univeristy, 620 Michigan Ave NE, Washington, DC, 20064, United States
(DC) (Casey Trees) Join Meredith from CCAN to remove Invasive Vines at Catholic University. We will spend the first 30 minutes doing a brief training on invasive vines and best practices for removal, and spend about 2 hours removing vines from the trees. We will focus on non-native invasive vines including porcelainberry (Ampelopsis glandulosa var. brevipedunculata) and English ivy (Hedera helix).

Invasive Plant Early Detection at Peirce Mill
2026-03-21 10:00 - 13:00 | Peirce Mill, 2401 Tilden St NW, Washington DC, 20008, United States
(DC) (Rock Creek Conservancy) Help the National Capital Region Invasive Plant Management Team, Rock Creek Park, and Invader Detectives survey for Corydalis incisa (Incised Fumewort). We will be hiking along the creek on trails south of Peirce Mill and using pin flags and iNaturalist to record any instance of the plant that we find. Corydalis incisa was first detected in Bronx County, NY in 2005 and has spread rapidly across the East coast ever since. C. incisa forms dense populations that suppress native plant growth. Our goal is to search for and understand the extent of both of this species so we can assess potential responses.

Community Tree Planting at Armed Forces Retirement Home
2026-03-23 09:00 - 13:00 | Armed Forces Retirement Home, 140 Rock Creek Church Rd NW, Washington, DC, 20011
(DC) (Casey Trees) Join Casey Trees as we partner with the Washington Wizards to plant trees at the Armed Forces Retirement Home!
You provide the volunteers, we provide all the necessary tools and supplies to plant the trees. Participants will receive a hands-on training on site. After learning the tools and techniques, participants will be split up into groups supervised by a trained volunteer Team Leader and begin planting trees throughout the space.

Naturally Latinos Conference (Hybrid)
2026-03-26 - 2026-03-28 | DC
(MD) (Nature Forward) This conference is a space for us to come together as a community that embraces the importance of our connection to nature and to one another. When we gather together, we recharge, we inspire each other, we learn from our successes and challenges, and we come out with a renewed strength to keep doing the work that we do.
This year’s theme, “Fortaleciendo comunidades y ecosistemas,”celebrates the work that many are doing to benefit our communities and bring nature back to urban spaces.

Mussel Survey at Kingman Island
2026-03-27 10:00 - 12:30 | Driving Range Parking Lot of the Langston Golf Course, 2556 Benning Rd NE, Washington, DC, 20002, United States
(DC) (Anacostia Watershed Society) Join the Anacostia Watershed Society for a wild freshwater mussel survey in Kingman Lake! We will be walking in mud that can be very mucky in waders (AWS can provide you with a pair if you don’t have your own). If you’re not comfortable walking in mud using waders, we recommend joining us at a different event.

Community Tree Planting at Mount Olivet
2026-03-28 08:00 - 12:00 | Mount Olivet Cemetary, 300 Bladensburg Road NE, Washington, DC, 20002
(DC) (Casey Trees) Join Casey Trees for one of our first plantings of the season, made possible by partnership with the Arbor Day Foundation and Verizon.
You provide the volunteers, we provide all the necessary tools and supplies to plant the trees. Participants will receive a hands-on training on site. After learning the tools and techniques, participants will be split up into groups supervised by a trained volunteer Team Leader and begin planting trees throughout the space.

Four Mile Run Litter Cleanup
2026-03-28 09:00 - 11:00 | Troy Park, 2629 South Troy Street, Arlington, VA, 22206, United States
(VA) (Four Mile Run Conservancy) Join the Four Mile Run Conservancy to collect litter along the trails and stream banks at Lower Long Branch Creek.

Invasive Plant Removal at 630 West
2026-03-28 10:00 - 12:00 | Reservation 630 West, 3031 Sedgwick Street Northwest, Washington, DC, 20008, United States

Weed Warrior Workday at Sligo Creek
2026-03-28 10:00 - 12:00 | Sligo Creek Stream Valley Park, Silver Spring, MD, 20901, United States
(MD) (Montgomery Parks) Join Weed Warrior Supervisor Alexander for a non-native, invasive plant removal workday at Bullis Local Park in Silver Spring. We will focus on non-native, invasive vines, including porcelainberry (Ampelopsis glandulosa var. brevipedunculata), wintercreeper (Euonymus fortunei), and English ivy (Hedera helix). Native Virginia creeper and poison ivy are also present and beneficial, so we will avoid those.
More details, including the exact meeting location, will be emailed to all pre-registrants.

Weed Warrior Workday on the Capital Crescent Trail
2026-03-28 10:00 - 12:00 | DC
(MD) (Montgomery Parks) Join Weed Warrior Supervisor Sarah for a non-native, invasive plant removal workday on the Capital Crescent Trail at Dorset Avenue in Chevy Chase, MD. Meet on the CCT where it intersects with Dorset Avenue in Chevy Chase (on the downhill side of the trail at Dorset).
Click here for more information on the Little Falls Watershed Alliance’s (LFWA) website.

Invasive Plant Removal at Picnic Grove 1
2026-03-29 10:00 - 12:00 | Rock Creek Picnic Grove #1, 2401 Tilden St NW, Washington, DC, 20008, United States
(DC) (Rock Creek Conservancy) Join Rock Creek Conservancy, the National Park Service, and Weed Warrior Leader Danna McCormick for this invasive plant removal restoration event in Rock Creek Park. Invasive plants are a major threat to our fragile forests, and stopping their spread helps allow native plants to thrive in the understory.

Invasives Removal at Shepherd Park
2026-03-29 14:00 - 16:00 | Shepherd Park Community Center, 7800 14th Street NW, Washington, 20012, United States
(DC) (Rock Creek Conservancy) Come help the Shepherd Park Weed Warriors remove invasives at Shepherd Field (behind Shepherd Elementary School) on Kalmia Rd, NW in ward 4. Tools provided. Please wear sturdy shoes with good tread, and weather appropriate clothes you don’t mind getting dirty or snagged. Bring your own water bottle.
