We're restoring, enhancing and protecting the tree canopy of our nation's capital. Join us!
Joined December 2008
- Tweets 15,026
- Following 1,142
- Followers 5,832
- Likes 10,252
3,661 Photos and videos
Jun 10
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.
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Jun 10
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.
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Jun 10
Why does this matter? DC lost 565 acres of tree canopy between 2015-2020.
Big trees provide the most shade, store the most carbon, and cool the hottest neighborhoods. Protecting them is one of the fastest ways to make DC more livable and equitable. The work continues!
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Jun 5
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-…
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May 21
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…
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May 20
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. 🌱
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Apr 24
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
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Apr 16
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
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Apr 9
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 🌳
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Mar 31
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!
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Casey Trees retweeted
Jan 19
💚 💚 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
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7 Nov 2025
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.
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7 Nov 2025
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-…
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Casey Trees retweeted
5 Nov 2025
The @ccan is partnering with the City of Hyattsville and @CaseyTrees to remove invasive vines from the University Hills Duck Pond and homes in Ward 3! Volunteers are needed on 11/15 from 9AM-12PM. Student service hours provided. Learn more and signup at hyattsville.org/vine-removal.
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Casey Trees retweeted
17 Sep 2025
Thrilled to be part of the annual #urbantreesummit conference today at the #silverspring civic center kicking off with an inspirational keynote by Doug Tallamy #gardendc #dmv #urbantrees #treesmatter
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Casey Trees retweeted
8 Sep 2025
Mark your calendars for Saturday, September 27th from 11:00 AM to 3:00 PM and join us on Kingman and Heritage Islands!
Huge thanks to all of our confirmed partners including: @caseytrees, @KenAqGardens, @AnacostiaRrkper, @UrbanAdvSquad, @joelartista, @livingclassroom, @HillFamilyBikin, Bright Bear Yoga, DC Bird Alliance, Lando Dolce, The Grandson’s Jr. Band, RES and Sarver Ecological, and more!
Check out the full list of activities and register today at kingmanisland.com/friends-fa….
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29 Aug 2025
Trees are nature's air conditioners and one of the best tools we have to fight climate change.
We’re excited to be featured in this important piece from @ClimateStepsUS about how trees cool and heal our cities. climatesteps.org/2025/08/11/…
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27 Aug 2025
Over 30 protected Heritage Trees at RFK face removal after the DC Council advanced legislation granting developers blanket permission to cut them down.
It's unacceptable.
Sign our petition calling on the Council to preserve as many of them as possible 📣 caseytrees.org/2025/08/sign-…
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19 Aug 2025
NEW: Instead of giving in to development pressure, Rebecca Renard-Wilson decided to protect her family's quarter-acre of woodland in Anacostia—forever.
Read about her decision to place the land under a conservation easement with Casey Trees (from @wcp): washingtoncitypaper.com/arti…
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