Think Your Ash Tree is Affected by Emerald Ash Borer?
Joining the ranks of mosquitoes as one D.C.’s dreaded pests is a small, shiny green beetle, the Emerald Ash Borer (known as EAB). These small green beetles are from East …
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Stand Up for Trees this Month
If you love D.C.’s trees, join us to become certified in tree advocacy by attending our workshop, Advocacy in the District. In this class, you’ll learn to analyze development projects, prepare …
Don’t Panic! Common Tree Issues and How to Treat Them
While spring and summer bring a beautiful, lush canopy, growing leaves and trees can also showcase some of the issues a tree is having. Here are some common tree issues …
Trees that can Tolerate Water When it’s Feast or Famine
Noticing higher energy or water bills this summer? You may have if you’ve been cranking the AC or watering your garden more to combat the extreme heat. And, you’re right …
St. Paul’s Townhomes Development Win
In order to help the District reach its 40 percent tree canopy goal by 2032 – a challenge given the increasing pace of development in the nation’s capital – Casey …
Protect Your Head and D.C.’s Canopy with our New Hats
Your new summer wardrobe staple is here! This stretch-fit New Era cap in grey and black will subtly flaunt your D.C. pride, protect you from harmful UVs and support Casey …
HR, Admin and Forestry Folks: We’re Hiring!
Why not bring your talents and skills to Casey Trees? We are growing in dynamic new ways, and we recognize that the right people, offering their ideas and expertise, will …
A Tote-ally Rad Way to Re-Tree D.C.
Environmentally friendly, supportive, and chic. No we’re not talking about your dream date we’re talking about our new tote bags! Here are the many ways you can show your love …
Cities need Trees. Rivers need Trees. We need Trees. Learn How to Stand Up for Trees.
Learn how you can protect D.C.’s trees at this fun, interactive workshop. Stand Up for Trees will prepare you to navigate D.C.’s unique political geography to help increase tree canopy …
Farewell to Marty Frye, our Urban Forester
Our longtime arborist, Marty Frye, is off on his next adventure! From Residential Plantings to PawPaw trees (and mead!) to Community Tree Plantings, Marty’s dedication and joy for all things trees …
Sign Up to Prune the Famous Cherry Trees
Join Casey Trees and the National Park Service for a special opportunity to prune the summer suckers of the historic cherry trees. Suckers are an adventitious shoot which grows from …
Remembering Those We’ve Lost
While for many Memorial Day marks the opening of pools and the unofficial start of summer, the holiday is mainly a way to remember and honor those who gave the …
St. Elizabeths East: The Special Tree Law in Action
Did you know D.C. has a law that protects large trees from being cut down? The Tree Canopy Protection Amendment Act of 2016 does a lot of great things, but …
Ensure D.C.’s Trees Beat the Heat
Did you know D.C.’s trees are worth almost $4.5 billion? What could $24 do for D.C.’s trees? What about $48? Even $124? Do More 24 — a 24-hour online day …
Think Pollen is Off the Charts this Year? You’re not wrong.
The catkins are piling up — those pendulous clusters of tiny flowers covered in pollen. And they’re on sidewalks, cars, and everywhere else. Believe it or not, tree pollen maxed …