HPS/MAG Programs 

 We are a hub for gardening! The Philadelphia region has a tradition of gardening going back more than 300 years. It continues today with more than 30 gardens, historic landscapes and arboreta within 30 miles of the city.

 Important: Click here to view HPS/MAG Refund Policy.


Our enthusiastic and knowledgeable Program Chairperson scouts speakers and topics both nearby, and from across the country. Our lecturers include horticulturalists, authors, researchers and landscape designers.

Wholesale shopping opportunities (for members only) are also scheduled.

Upcoming Programs

March 19, 2022 March Into Spring - A Virtual Symposium. Click here to go to the 2022 March Into Spring Symposium webpage with all the details. Members and non-members welcome. The Symposium will include 2 speakers and a fabulous Online Auction.   

Upcoming Wholesale Shopping Events - Members Only

Please Note: Details of  the Wholesale Shopping Events which include HPS discounts, are only available to members signed into the website. 

  • July, 2022 Clearview Nursery, Souderton, PA. 
  • September, 2022 Still Pond Nursery, Douglassville, PA.

Photo by Carol VerhakeThe HPS/MAG traditional annual itinerary of Speaker Programs.

With the exception of our spring symposium, most lectures are free to our members. The Joanne Walkovic and Haverford lectures open to the public.  

January - The Joanne Walkovic Memorial Lecture, is a annual collaboration with the Scott Arboretum of Swarthmore College. Recent speakers have included Tony Avent, Plant Delights Nursery; Dan Heims, Terra Nova Nursery; author Ken Druse: and writer and radio host Jessica Walliser. 

March - Our March Into Spring Symposium features up to 5 lectures, along with a fabulous silent auction, and vendors featuring plants, apiary products and garden gear. It is a Virtual Event, if necessary, and includes an Online Auction. 

October - November - The Haverford Lecture is cosponsored with the Haverford Arboretum. Recent speakers have included Carrie Preston, Studio Toop; Larry Weaner, Larry Weaner Landscape Associates; ecologist and conservationist Joan Maloof; and Kirk Brown as Frederick Law Olmstead.

November - December - We now offer a lecture following our annual business meeting. Speakers have included Jules Bruck, Associate Professor of Landscape Design at the University of Delaware, historian and author Marta McDowell, landscape architect Susan Cohen, and "The Herb Lady", Caren White.

Contact HPS/MAG Programs Chair at [email protected]