Volunteers and staff planting at Alice Deal School

Who We Are

Casey Trees is a Washington D.C.-based nonprofit, established in 2002, with the mission to restore, enhance and protect the tree canopy of the nation’s capital.

To fulfill this mission, we plant trees, engage thousands of volunteers of all ages in tree planting and care, provide year-round continuing education courses, monitor the city’s tree canopy, develop interactive online tree tools and work with elected officials, developers and community groups to protect and care for existing trees and to encourage the addition of new ones.

Learn more about the history and purpose of our organization, or take a look at our programs in more detail.