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


February 26
HPSO Travel Club meeting - "Gardens of Singapore"
Travel Club members only   |   Free admission


March 3
Plant Nerd Night
Open to the public   |   Free admission

More info


March 11
New Member Orientation meeting
Members only   |   Free admission

More info  |  Register now


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
Now accepting applications for nurseries and artists.  Click here for more info.

Volunteer registration is now open!  Volunteer here.


 A wealth of gardening benefits and connections at your fingertips.
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A Gift Membership is always a welcome gift for that special gardener:

Gift Membership



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