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   


September 15
HPSO After Hours: Pomarius Nursery

Members only | Free admission
More info 
| Register now


September 17
Fall PlantFest with special guest lecturer, Richie Steffen

Open to to public | Admission - $10 (members), $20 (non-members)
More info  |   Register now


October 2
Gen(i)us Program with Sean Hogan: "Trees for Northwest Gardens"

Open to to public | Admission - $5
More info  |   No need to pre-register; pay at the door.


October 11-November 4
Overseas tour: "A Grand Adventure in New Zealand"

Members only | Sorry, this tour is now filled
More info  


October 22
Annual Meeting, guest speaker Andrea Wulf

Members only | Free admission
More info  |   Registration opens September 1st


 A wealth of gardening benefits and connections at your fingertips.
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