News & Updates

A group of children and an adult plant a tree on a school campus

September 15 2025

Keeping Environmental Education Alive in DC Schools

When DC’s budget crisis hit this year, many programs faced difficult cuts. Unfortunately, our Nature Near Schools program was among […]

Four kids sit at a table looking at the rings of a cut piece of tree trunk.

September 8 2025

Summer Highlights: Nature, Play, and Plenty of Trees!

This summer, our TreeWise program connected 312 youth, ages six to 16, to the great outdoors, sparking curiosity and love […]

Heritage trees at the Parkside development

September 8 2025

DC’s Tree Laws Should be Protections, Not Suggestions

Picture this: You’re walking through your neighborhood on a sweltering summer afternoon, and you duck under the sprawling canopy of […]

Collage image that says

August 25 2025

FREE TREE Giveaway at the DC State Fair!

August 25 2025

Sign The Petition: Don’t Cut Down RFK’s Heritage Trees

August 18 2025

Make a Plan for the People and Places You Love

August 18 2025

Tree of Heaven: The Invasive That’s Probably in Your Backyard

Two incoming Howard University Law students smile for the camera in front of a truck filled with mulch. Other students and Casey Trees employees work in the background.

August 11 2025

Taking Care of DC’s Trees With Howard University Law Students

A tree-lined street near H Street in Washington, DC

August 11 2025

Can Trees and Green Spaces Help Promote Public Safety?

Dog-day cicada on a branch.

August 4 2025

The Cicadas are Coming (but not to DC)!

Shadows casting on a building

July 28 2025

Seeking Shade in American Cities

Four unripe pawpaw fruit hanging from a tree

July 28 2025

Get Ready for Pawpaw Season!

July 21 2025

Mapping DC’s Most and Least Shaded Neighborhoods

Elliot in June watering a young street tree

July 21 2025

One Kid’s Mission to Water All the Trees in His Neighborhood

Looking up at a tree canopy and the summer sun

June 30 2025

The Science of the Seasons: Summer Phenology

Students stand in a circle at the National Arboretum

June 30 2025

Cultivating Tomorrow’s Environmental Champions Through Outdoor Education

June 20 2025

Public Testimony | June 13, 2025 | Committee on Transportation & the Environment

a team of volunteers drops mulch at a volunteer event in Emery Heights Park

June 16 2025

Summer Is Here! Check Out Our Upcoming Events

June 11 2025

Public Testimony | June 2, 2025 | Committee on Transportation & the Environment

June 9 2025

Casey Trees and Bartlett Tree Experts, A Crowning Partnership Made in the Shade (of Urban Trees)

Boulder Bridge at Rock Creek Park

June 2 2025

DC Is Hot and Humid – But Is It Really a Swamp?

Two students dig a hole as they learn how trees are planted

June 2 2025

“Best Day of My Life”: Highlights From School Tree Planting Season

May 19 2025

The Serviceberry: A Guide to Appreciating this Small but Mighty Tree

A team of volunteers pause digging to pose for a photo with their shovels at the Armed Forces Retirement Home

May 19 2025

Looking Back on Our Final Community Tree Planting of the Season

May 19 2025

Beyond No-Mow May: Transforming Lawns into Lush Gardens and Tree Havens

Picture of 3 different blooming trees

May 12 2025

Seven Beautiful Trees That Are Late Bloomers

May 12 2025

Talking Urban Tree Selection with the GardenDC Podcast