About PHS

The Pennsylvania Horticultural Society (PHS) is a not-for-profit membership organization founded in 1827. Under the leadership of Jane G. Pepper, PHS provides great events, activities and publications for novice gardeners, experienced horticulturists, and flower lovers of all ages.

Our Mission: The Pennsylvania Horticultural Society motivates people to improve the quality of life and create a sense of community through horticulture.

PHS also produces and manages a variety of shows, competitions, and programs, including:

• The Philadelphia Flower Show, the largest indoor flower show in the world.
• Proceeds from the Philadelphia Flower Show support PHS's programs, including neighborhood and public landscape greening projects through Philadelphia Green.
• PHS offers many services, including garden tours and publications.
• Kids Grow Expo
• City Gardens Contest

Visiting Information

PHS headquarters is located at 20th & Arch Streets in Philadelphia, Pennsylvania. Inside are administrative offices, as well as the our library, which houses the most extensive collection of horticultural books in the Greater Philadelphia Region. Click here for directions.

For more information about PHS:

The Pennsylvania Horticultural Society
100 N. 20th Street
5th Floor
Philadelphia, PA 19103-1495

Phone: 215-988-8800
Fax: 215-988-8810

2009 PHS Annual Report

Thank You to Our Great Volunteers!

How to Be a Philadelphia Green Volunteer in 3 Easy Steps