The Pennsylvania Horticultural Society is a nonprofit membership organization founded in 1827 that offers programs, activities, workshops, and publications for gardeners of all levels and interests.

Proceeds from the PHS Philadelphia Flower Show, as well as donations from foundations, corporations, government agencies, and individuals, support PHS programs and initiatives, including Plant One Million, a multi-state tree-planting campaign, and City Harvest, which grows fresh produce for more than 1,200 families in need each week.

Our Mission
PHS motivates people to improve the quality of life and create a sense of community through horticulture.

Visit Us
PHS headquarters is located at 100 North 20th Street (20th and Arch Streets) in Philadelphia, Pennsylvania. In addition to administrative offices, the building houses the PHS McLean Library, which contains the most extensive collection of horticultural books in the Greater Philadelphia region.