We're restoring, enhancing and protecting the tree canopy of our nation's capital. Join us!
Washington, DC
Joined December 2008
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Casey Trees retweeted
Ana the Shad is ready for Kingman Island Friends and Family Day this weekend. Are you?!
Join DOEE and partners THIS Saturday, October 17, from 11 AM – 3:00 PM for FREE outdoor activities including:
🚣🏾♀️ Paddling on Kingman Lake with @livingclassroomsncr
🛥️ Motorized boat tours on the Anacostia River with @anacostiaws and @anacostiariverkeeper
🎨 Nature-themed arts and crafts with @urbanadvsquad, @caseytrees, and DOEE
🦉 Wildlife demonstrations with @earthconservationcorps and
🌳 Guided forest therapy, bird (@dcbirdalliance), and tree (@ddotdc) walks
📚 Library on the Go-Go and Nature Storytime with @dcpubliclibrary
🎧 Audio narratives with @pourgirlsdc
🗺️ Scavenger hunt with @kenaqgardens
🖼️ Stations to help shape the future of the Islands through the Structures & Trails Design Project
👖 A clothing swap (all ages and genders) and DIY Upcycled Kingman swag with DOEE’s ReThread DC
Visit kingmanisland.com/friends-fa… to learn more.
Trees are under threat at East Potomac Park where over 400 trees were removed this weekend, with another 300 slated to be taken down. Here's what we know so far and what this means for our city: caseytrees.org/2026/10/east-…
Like many of you, we’re concerned and surprised to hear that more than 500 trees are being removed at East Potomac Park today. We’re trying to understand what’s happening and don’t have many answers yet. Thank you for caring about DC’s trees - we’ll share more as we learn more.
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It’s National Green City Day!
From triangle parks to tree-lined avenues, DC is called the City of Trees for a reason. Every day, we work for a future where every person in every ward has trees and green space close to home. 💚
Be sure to notice & celebrate DC’s greenery today!
Casey Trees retweeted
We attended the screening of the Extraordinary Caterpillar 🐛 last night at the AFI Silver hosted by @montgomeryparks and @caseytrees followed by a panel discussion and caterpillar pass around #gardendc #caterpillars #insects #homegrownnationalpark
DC residents—visit Casey Trees at the DC State Fair this Sunday, Sept. 6, to snag your very own serviceberry tree!
We’ll be giving away 100 trees on a first-come, first-served basis, so make sure to get there before they’re gone. 🌱
See you there! caseytrees.org/statefair
Casey Trees retweeted
🌳 MCDOT + @CaseyTrees are planting 1,700 additional new trees in right-of-way areas across neighborhoods this upcoming planting season. Trees can boost comfort, cut heat, and improve air quality.
Request @311MC311 (311 or 240‑777‑0311).
@mocogov
ALT Workers in safety vests planting young trees along a grassy roadside next to a sidewalk under a cloudy sky.
DC has a new tree law – and it’s a big deal for our city’s mature trees! 🌳
Thanks to the Tree Preservation Enhancement Amendment Act of 2025, more trees are now protected from removal. Here’s what’s changed.
Going forward, DC's Tree Fund — which pays for new plantings, tree care, and support for residents — is also explicitly protected from being swept into the general budget. All funds will now go toward the planting, care, and protection of trees.
Land conservation isn’t just for vast landscapes—it's for cities too.🌱
This quarter-acre lot in Riverdale Park, MD was once overgrown w/ invasives. Now, it's an oasis for plants, trees & wildlife—and it's forever protected. Read about the transformation: caseytrees.org/2026/06/from-…
Trees pay for themselves—and then some.
For every dollar invested in urban trees, cities get $2 to $5 back in energy savings, lower healthcare costs, and cleaner air and water. Trees are good for people. And they’re good for our economy. marketplace.org/story/2026/0…
Nothing like a day in the park with free trees!
We were thrilled to give away 150 trees at this weekend’s Anacostia River Festival! Vibes were high as neighbors took home native trees to help grow DC’s canopy, showing how trees are not only good for our planet, but fun, too. 🌱
Happy #ArborDay in the City of Trees! 🌳
From Rock Creek to the Anacostia waterfront, trees are woven into the fabric of Washington, DC.
Today we celebrate our city’s homegrown monuments — and the people working to keep it that way. 🌿cityoftreesdc.org
Hey, DC! Our future is on the ballot.🌱
Don’t miss the DC Mayoral Sustainability Forum on Earth Day, where candidates can share their vision for a healthier, greener, and more equitable DC.
Registration is free and open to the public: dcmayoralforum.org
Have you seen the Casey Trees bus yet?? 👀
This spring, we’re celebrating DC’s legacy as the City of Trees on buses and at metro stops across town. Spot a bus? Make sure you snap a pic and tag us for a chance to be reposted!
Visit cityoftreesdc.org to learn more 🌳
The Eastern Redbud has entered the chat!🌸
While cherry blossoms claim the spotlight, Eastern Redbuds are native to the region, and right now they’re showing off their showstopping canopies of pink-purple flowers across DC. Keep an eye out for these beautiful blooms this week!
Casey Trees retweeted
💚 💚 Gratitude in action! This #MLKDayOfService, volunteers joined us at Oxon Run Park to honor Dr. King’s legacy through care, connection & community. Big thanks to @dc_greens, Friends of Oxon Run DC & @CaseyTrees for making it happen! ✊🏽
#MLKDay #ClimateAction #InvasiveVines
The DC Mayor has officially proclaimed today Mark Buscaino Day!
After nearly 20 years as Executive Director of Casey Trees, Mark has stepped into an advisory role—continuing to share his deep knowledge and vision that have shaped our work from the beginning.
In a new blog post, Mark reflects on his career, the evolving challenges of caring for our city’s trees, and his hope for the future of our tree canopy: caseytrees.org/2025/11/mark-…
