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Hardy Plant Society of Washington

Updated 2024 Schedule ***Full event details are listed below this calendar***March 18th Meeting at CUH: Perennial Vegetables in Western WA – Joe JenningsMarch 30th First work party at Kandy’s, details below.April 21st HPSW Spring Plant Sale at UWCUH May 20th Meeting at CUH: Tomato Sustainable Gardening – Joe JenningsJune 17th Meeting at CUH: Opportunist Propagation Tips – Fred WemerSept 16th Meeting at CUH: Basics of Successful Composting – Fred Wemer Oct […]


HPSW Meeting at CUHMonday, Sept 18th 7pm-9pmChristina Pfeiffer‘Gardening Beneath the Trees’Mature trees are a valued asset in the landscape. She will be sharing current best practices for protecting trees and improving results for companion plantings when installing new gardens and maintaining older plantings amidst the roots and shade of existing trees.  Doors open at 6:30 […]

2018 Bulb listing for the HPSW Fall Sale – October 14th

Here’s a look at the Bulbs available at the Fall Sale Hardy Plant Society of Washington 8th Annual Fall Bulb and Plant Sale Sunday Oct 14, 10 am – 2 pm – only

HPSW Christmas Party – December 13th from 3 to 6pm

      The HPSW Christmas Party will be Dec 13 3pm-6pm or so at Lynne Harrison

HPSW Meeting – Nov. 16th – 7pm : Kathleen DeMaria – Washington Park Arboretum New Zealand Gardens

Kathleen DeMaria will be