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


December 4
Special workshop: "Facebook for Gardeners"
Members only | Free admission
More info  |   Register now


January 22
Winter Program: "Foliage First" with Karen Chapman
Open to the public   |   $10-members, $20 non-members
More info   |   Register now


February 12
Gen(i)us Program: "Conifers" with Norm Jacobs
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.


 A wealth of gardening benefits and connections at your fingertips.
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