HPSO:  Celebrating 32 years of serving gardeners.

We make the world a better place through horticulture.


The Hardy Plant Society of Oregon is a community of passionate gardeners at all levels. The Society offers an extraordinary array of educational programs and activities year-round. With now over 2500 members, HPSO is one of the largest non-profit gardening organizations on the West Coast.

Plant Sale

Discover cool plants

Plant Sale

Visit amazing private gardens

Plant Sale

Attend educational programs and make new friends

Plant Sale

Plant Sales featuring fantastic local nurseries

Plant Sale

One-of-a-kind garden art sales


Exciting Workshops and Events


Travel on tours to exotic places

Example Frame

Upcoming Events


March 26
Gen(i)us program: "Shade Plants for the Pacific NW: Ferns, Hostas, & Other Favorites" with Thomas Johnson
Open to the public   |   Admission - $5

More info


April 15-16
Hortlandia: HPSO's Spring Plant & Garden Art Sale
Open to the public | Free admission
More info

Volunteer registration is now open!  Volunteer here.


April 22
Special program: "How Gardening Changed My Life" with Barbara Blossom
Members only   |   Free Admission

More info  |  Register now


April 22-29
Garden tour to Charleston & Savannah
Members only  |  Sorry, this tour is filled.
More info on great tours


May 2
Gen(i)us program: "Carnivorous Plants" with Jacob Farin
Open to the public   |   Admission - $5

More info coming soon



 A wealth of gardening benefits and connections at your fingertips.
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