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Gardens To Visit
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Visit a PHS garden or landscape to help build stronger social connections with your community.
For Neighborhoods
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Explore programs that create healthy, livable environments and increase access to fresh food.
For Gardeners
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Engage with PHS on gardening, whether you’re an expert or a beginner.
About Us
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Get to know our story, become a part of our staff, or see what is in the news with PHS.
The Flower Show

PHS McLean Library and Online Resource Center

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The PHS McLean Library offers general and specialty gardening information and historical collections. Visitors can find resources on a range of horticultural topics at the library or below.

By becoming a PHS member you can borrow books. Borrowing eBooks is now available to the gardening public through a library consortium.

For further information, to make an appointment, or to ask a question, go to askPHS.

Dive into our PHS Subject Guides

Sort through 70 subject guides for all skill levels. 

Search our library catalog

Search over 15,000 books and DVDs including titles on many types of gardening.

Explore the library's Digital Collections

PHS McLean Library staff has digitized vintage Flower Show images, lantern slides, videos, books and much more.

Explore the library’s eBook collection

The WILS Horticulture Library Consortium shares collections with Longwood Gardens and the Mt. Cuba Center for digital borrowing. 

Get up to speed on what’s new in the library

Explore new titles and see what the McLean Library Book Group is reading this month.

Use the McLean Library Archives finding aids

These aids hold the history of PHS initiatives, administrative records, and cover an extensive image library. 


100 North 20th Street, 1st Floor
Philadelphia, PA 19103


Monday - Wednesday   9:30 am -3:30 pm
Thursday - Friday (by appointment) 
9:30 am - 3:30 pm




[email protected]


PHS McLean Library is ADA compliant. On-street parking and parking lots are located nearby.

Wondering what to plant in your yard, home, or office? Seeking to identify a plant or pest in your garden? Have a question about PHS offerings? Visit AskPHS, our online forum for your horticulture questions.