HPSO:  Celebrating 30 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 2300 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


October 26
HPSO Travel Club program: "A Barbarian in the Gardens of Kyoto" with Dave Eckerdt
HPSO Travel Club Members only | Free Admission  |  This event is now FULL.  |  Contact the HPSO office if you wish to join the Travel Club  |  

November 8
Autumn in the Library
Members only  |  Free Admission, but you must register to attend
More info |
Register now

November 16
Movie Matinee: "Finding David Douglas", a production by HPSO member, Lois Leonard
Open to the public  |  Admission - $5
More info |
Register now

February 8
Gen(i)us program: "Winter Gems in the Garden", with Roger Gossler
Open to the public  |  Admission - $5
More info coming soon
Registration opens mid-December

June 26-28, 2015
Portland Study Weekend: "Planet Garden: Gardening in Our Changing World"
Open to the public  |  Admission - $165 (After May 1, 2015: $185)
More info |
Registration opens February 1st



 A wealth of gardening benefits and connections at your fingertips.
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 Save the date for the

Portland Study Weekend

June 26-28, 2015

More info >


Platycodon grandiflorus

Rose 'The Pilgrim'

Lily 'Electric Red'

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