Discover cool plants

Visit amazing private gardens

Attend educational programs and make new friends

Plant Sales featuring fantastic local nurseries

One-of-a-kind garden art sales

Exciting Workshops and Events

Travel on tours to exotic places

Upcoming Events

April 28
Garden School: "Jane Platt Garden Tour & Pruning Demonstration"
Members Only | Registration $20
More info  | Sorry, this is now SOLD OUT

May 5
HPSO workshop: "Techniques for Propagating Lilies (and other plants, too)"
Members Only | Sponsored by HPSO Lily Study Group | FREE Admission
More info  | Register now

May 12
Garden School: "Oregon Garden Giants: The Salem gardens of Lord & Schryver"
Members Only | Registration $10
More info  | Register now

May 15
Gen(i)us Program: "Alpines" with Truls Jensen
Open to the Public | Registration $5
More info  |  Register now

May 26
Garden School: "Fernishing" Your Garden
Members Only | Registration $20
More info  |  Register now

More events>

 A wealth of gardening benefits and connections at your fingertips.
learn more >

Membership expired?
Renew >

Mark your calendars

Garden Expressions:
Country Classic to Suburban Sanctuary

June 23, 2012
Hours: 10-4

Tour five private gardens
in Hillsboro & Aloha.
Proceeds support the HPSO
Grants & Scholarship funds.

Open to the public.

More info  or

Purchase tickets