News & Updates

Top of a tree of heaven.

June 8 2026

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

Smelling like burnt peanut butter, crowding out native species, and playing host to one of the most notorious invasive insects […]

June 1 2026

DC’s New Tree Protections: A Win for Our City’s Trees and Residents

For more than two decades, DC has been trying to answer a big question: how do we grow and protect […]

A group of people gathered at the grand opening of Ravenswood.

June 1 2026

From Overgrown to Forever Protected: Riverdale Welcomes a New Community Forest

Once overtaken by invasive bamboo and vines, a quarter-acre green patch in Riverdale Park, Maryland has been transformed into an […]

August 15 2022

DDOT Budget Testimony of Kelly Collins Choi – 2022

August 15 2022

Buds and Bugs with Bartlett Tree Experts

August 15 2022

Tree Jokes that are Unbe-leaf-ably Funny

August 15 2022

Lets Chat Nonprofit with Executive Director Mark Buscaino

August 8 2022

Tips on Keeping Happy, Healthy Trees this Summer

August 5 2022

What’s Up with the Painted Trees?

August 5 2022

My City’s Trees – a Tool you Already Have!

August 1 2022

GCA Scholarship Winners are in!

August 1 2022

Early Bird Sales Ends in ONE WEEK – Get Your Urban Tree Summit Tickets Now!

August 1 2022

We did it! 1 day, 2,000 trees

July 25 2022

2k Watering Day

July 25 2022

World Conservation Day

July 18 2022

Shady Parks in Wards 5, 7, & 8

A woman watering a tree with a bucket

July 18 2022

Half-way there: Weekly Watering Alerts

July 18 2022

Nature Near Schools

July 11 2022

Golf, Sustainability, and Inclusion

July 11 2022

World Emoji Day

July 11 2022

Urban Tree Summit

July 5 2022

Fight like a Female Forester

July 5 2022

July 2022 Events are Live

July 5 2022

No Plastic? No Problem.

June 27 2022

Happy Pollinators 101

June 27 2022

Welcome to the Casey Trees Team: Christina Hester

June 27 2022

Stay ‘Cool’ This Independence Day