The ordering period for the 2017/2018 seed exchange has ended.  All seed orders were mailed by 2/20/2018.  Contact Carole Maher at [email protected] if you did not receive your seeds.

Click here to view a copy of the 2017 paper catalog. 

Since the fall and winter of 1993-94, the Seed Exchange has been one of the activities that makes HPS/MAG stand out from all of the other plant societies in the Mid-Atlantic region. Each year, as the fruiting season for a plant comes to an end, dedicated Society members collect the seeds and forward them, along with a description of the plant, to the Seed Exchange Team. The information is then used to create the Seed Exchange Catalog. This year's annual edition (2017-2018) of the Catalog includes 933 seed donations generously contributed by 58 gardeners, from beginners to professionals. And also this year we have over 100 new seed varieties never before offered in our catalog!

In early January, Society members can order seeds for a small fee. Later in January and February, dozens of volunteers meet at The Henry Foundation for Botanical Research in Gladwyne, PA to sort and divide seed into packets to satisfy the orders. Thousands of work hours and volumes of gardening knowledge go into providing this valuable exchange of seeds.

Any member can submit seeds or volunteer to clean and sort seeds. Not a member? Click here for the membership form.

To learn more about the Exchange, read "A Seed of an Idea and How it Grew" from a past HPS Newsletter.  Or visit the Avant Gardens Blog, GardenForeplay, for a 2014 posting titled "Collecting Seed for Seed Exchanges."

2017-2018 Seed Exchange Workshops
Join us for cleaning and packaging workshops at the Henry Foundation for Botanical Research, 801 Stony Lane in Gladwyne, PA, held from 10:00am to 2:30pm on Tuesdays, Wednesdays and Thursdays starting Wednesday, January 31, and continuing into February. To schedule your workshop volunteer services, please contact our friendly volunteer coordinator, Polly Garnett, at [email protected] or 610-695-9135.

Volunteers are needed for the cleaning and packing workshops.  If interested contact Polly Garnett.

In addition to learning at least one new thing about seeds and propagation, you can renew old friendships, hear the latest news, describe the progress in your own garden, and review the great gardens that you had the opportunity to visit in the past year. Bring a lunch for yourself and maybe a snack to share. Coffee, tea and water are provided. 

2017-2018 HPS/MAG Seed Exchange Snow Cancellation Notification

Since the Seed Exchange workshops typically coincide with some of the worst winter weather of the year, we will notify volunteers of the day's plans with an announcement on the home page of the HPS/MAG web site,, available by 8:00 am each workshop day on which weather is a factor. For those without access to a computer, call 215-356-7377 for up-to-date information.

Seed Propagation Workshops

Jan 30 - Seed Propagation Workshop, Seeds of Unusual Plants and Winter Sowing: Loretta DeMarco demonstrates at The Henry Foundation, 10:30–12:30. Open to members only for a $5 fee.  To register for this workshop, click here.  Open to HPS members only.  Limit to 15 people.

Seed Volunteers, photo courtesy of Rob Cardillo