Friends of the Urban Forest

Friends of the Urban Forest helps individuals and neighborhood groups plant and care for street trees and sidewalk gardens in San Francisco. This "green infrastructure" improves the city by beautifying neighborhoods, cleaning the air, raising property values and reducing polluted stormwater runoff. Since 1981, FUF has planted more than 50,000 trees, totaling 47% of the city's street tree canopy.

https://www.fuf.net/