San Francisco Department of the Environment

San Francisco Arbor Week

National Arbor Day is celebrated in April, while many states celebrate a local Arbor Day during different times of the year. California dedicates an entire week, March 7-14th, to celebrating trees, not just one day! San Francisco Arbor day changes from year to year, it is generally on the Saturday that falls within California Arbor Week.

Many city departments work together to organize the city's annual Arbor Day event, which is lead by the Department of Public Works' Clean Team. The event includes volunteer activities, tree planting, neighborhood beautification, and a family-friendly fair, among other festivities.

Each year, signature trees are dedicated to community leaders and advocates. Past honorees include Nelson Mandela, Wangari Maathai, Charlie Starbuck, Rosa Parks, Cesar Chavez, Ruth Asawa, Dr. Ellen Wolf, and Dana Woldow.