Washington was quite literally designed to be a City of Trees. And for over 200 years, those trees have been doing quiet, essential work: cooling our blocks, cleaning our air, filtering our water, and making the nation’s capital one of the most livable cities in America.

Designed for trees

When Pierre Charles L’Enfant designed the capital in 1791, he built in room for nature, drawing wide diagonal avenues, generous public squares, and landscaped strips along every road and in every neighborhood. 

In 1870, Congress formalized those strips through the Parking Act, which set aside the land between roadway and private property as park-like space, giving DC the long, shady blocks residents know today. Those street trees are only part of the story: Rock Creek Park (the nation’s oldest urban park), Fort Dupont, Kenilworth Aquatic Gardens, Anacostia Park, the National Mall, and hundreds of neighborhood green spaces layer a thick, unbroken canopy across the city, visible from the air, and felt on every block. 

Ready to grow

Today, DC remains one of the greenest cities in the nation – its tree canopy stretching over neighborhoods, parks, and streets alike. More than a third of the District is shaded by trees that cool our streets, clean our air, and connect residents to nature every day. Decades of planting, protection, and care have grown this living legacy, and communities across the city continue that work – restoring lost canopy, tending young trees, and ensuring future generations inherit a city as leafy and vibrant as the one envisioned centuries ago.

DC has adopted a goal to reach 40% tree canopy by 2032 – a goal that guides planting, protection, and community action across the city. Through shared effort, every tree brings the District closer to a healthier, cooler, and more connected future.

Collage of DC and its Trees

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Collage of tree species stickers



How better to show your love for DC trees than with these stickers featuring iconic tree species and wildlife?! Sign up for our newsletter and receive a free “City of Trees” sticker pack in the mail! Our weekly Leaflet newsletter is full of tree facts, forestry highlights, local events, and more.










Shop DC TRee Pride

City of Trees Print

A collaboration with local artist C.S. Corbin, this hand-drawn illustration is printed on 8×10″ high-quality cardstock and celebrates the beauty and diversity of DC’s trees.

$15

Our take on a DC flag tee

DC Flag Short Sleeve T-Shirt

Rep your District pride with our take on the classic DC flag tee! 

$23

Tree Species Guide

New and updated! If you’ve ever seen a tree and wondered what it was, this guide with over 50 species found in the DC metro area is for you!

$30

Get Involved: upcoming events

Volunteers planting a tree.

Wednesday, April 22: Earth Day Community Tree Planting at Mount Olivet Cemetery

Join us to plant trees and grow our urban forest! After learning the tools and techniques, volunteers will be divided into groups, supervised by a trained Team Leader.

Boat tour on the Anacostia River

Saturday, April 25: Earth & Arbor Day Celebration at Anacostia Park

Join a fun afternoon of community fellowship to celebrate Earth and the trees that care for us. There will be free food, skating, boating & more!

Boulder Bridge in Rock Creek Park

Saturday, May 2: Spring Tree Walk in Rock Creek Park

Discover the tree species and history of Rock Creek Park on this scenic walk led by naturalist author Melanie Choukas-Bradley.

The superpowers of Trees

The benefits of trees are more than meets the eye. Beyond environmental advantages like fresh air and clean water, trees save homeowners money on energy costs, reduce noise pollution, shade surfaces to combat urban heat, reduce anxiety, lower heart disease rates, bring communities together for recreation, boost local business and retail, and even slow traffic to make our streets safer.

These monuments need tending

Washington, DC has come a long way, but the canopy isn’t safe yet. DC has lost roughly 500 acres of tree cover over the past several decades. To reach our 40% tree canopy goal by 2032, we need commitment and individual action from everyone who cares about trees in our city.

The good news: There are clear, actionable ways you can help.

A group of people planting a tree

Volunteer

Plant trees, care for young saplings, or pull invasive vines. Over 4,000 volunteers showed up for DC’s canopy last year. Join them!

Donate

Every dollar plants more trees in the wards with the least canopy and the greatest environmental need. Your gift grows and protects our city’s trees.

DC Residents

Get free trees for your yard, school, or community space.

Our take on a DC flag hat

City of Trees Pride

Wear the canopy. Shop the Casey Trees store. 

Progress toward tree canopy goal:
92%