Hardy Plant Society of Washington

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P.O. Box 77556, Seattle, WA 98177

What we do

HPSW is a grass-roots educational organization interested in the conservation, propagation, dissemination, and use of hardy herbaceous perennials in the landscape. Our goals are to build an educational garden to demonstrate and maintain unusual varieties and cultivars, to perform plant trials, and to build test plots for perennials, emphasizing the conservation of old and uncommon varieties.  We host meetings about specific plant types, garden design, and horticultural techniques. We assist in rescuing gardens and plants threatened by change in the urban and suburban areas of Puget Sound.  

Plant Sale

We had a wonderful sunny day for our Plant Sale. We were so busy that we sold out by 1 pm! Thank you very much to all of the volunteers! Please see the Pictures on the Garden Rescue page

Seed Exchange

We strongly promote the exchange of rare and unusual seeds. Please see the Seed Exchange page for more information about the seeds we have available.