PHS takes great pride in sharing more than 180 years of horticultural knowledge while embracing new ideas.
Gold Medal Plants
Since its inception in 1979, the PHS Gold Medal Plant Award program has recognized trees, shrubs, and woody vines of outstanding merit. A volunteer Gold Medal Committee of horticulturists meets annually to evaluate and select PHS Gold Medal plants for their superb eye-appeal and performance in the USDA Hardiness Zones 5 through 7. Many winners are hardy in a broader geographic range. PHS Gold Medal Plants provide beauty in many seasons through their foliage, flower, form, or bark.
The PHS McLean Library has a circulating collection of 10,000 books and DVDs on gardening and plant care, urban greening, and more, as well as research collections consisting of rare gardening books, seed and nursery catalogs, and the archives of the Pennsylvania Horticultural Society.
The PHS McLean Library book discussion group meets on the first Thursday evening of the month, October through June. Join us in reading and discussing works of fiction or non-fiction having to do with gardening, plants, nature, or the land.
Library Exhibit: Horticulture Hall of Fame: People and Plants that Changed the Way We Garden
This illustrated exhibit highlights people, plants and events that shaped horticulture in America, beginning with the “Three Sisters” gardens planted by Native Americans to the late 20th century urban greening efforts of PHS’s Philadelphia Green programs.