Open gardens

Open gardens and garden tours


Garden art

Garden art at the twice-yearly Plant Sale & Art Sales

Plant Sale 4 Shoppers at the Fall Plant Sale

Learn about cool plants.



Volunteers are always eager to help. They keep HPSO thriving!

Open garden 2

See wonderful gardens

Here are a few reasons to be part of the

Hardy Plant Society of Oregon. 

  • Discounted prices to lectures and programs

    HPSO brings in speakers, both local, national, and world-class, to offer first-rate lectures on a wide variety of garden topics. HPSO also offers the Gen(i)us Series, a smaller-venue of programs that focus on a particular genus of plants, and also Garden School, a group of in-depth, hands-on workshops.

  • Visits to private gardens

    HPSO prints an Open Gardens book each year listing dozens of members' gardens open throughout the garden season. All garden visits are free.

  • HPSO Quarterly

    HPSO publishes a quarterly magazine with articles on various gardening subjects (written by volunteers), keeping them up-to-date on the latest news, programs, and trends in gardening.  The quarterly is available FREE by email or for $10/year for a printed version sent by US postal mail.

  • Discounts to local nurseries and other businesses

    HPSO members are entitled to discounts of 5%-25% at dozens of participating nurseries.

  • Overseas tours at wholesale prices

    HPSO offers affordable overseas garden tours. Past tours have traveled to England, Ireland, Scotland, France, Italy, Germany, Belgium, the Netherlands, and South Africa. Over 19 tours have been conducted to date.  Future tours will include Portugal and Spain, too.

  • Discounted prices on all garden books

    At least 20% off all garden books - all the time - including the latest releases.

  • Plant sales & garden art sales

    HPSO conducts the largest and best plant sales in the Pacific NW, typically with over 120 nurseries and garden artists participating.

  • 1500-volume lending library

  • And the camaraderie of avid gardeners like you

Join now.  Come grow with us.

Select the level of membership that's best for you:

Student Full benefits for one person; must submit proof of student id. - $25
Individual Full benefits for one person - $35
Individual Plus One Two people at one mailing address. Full benefits except only one mailed copy of publications - Open Gardens Book, Bulletin, Newsletter. - $40


Or, if you prefer, download a hardcopy membership form and mail it to us.

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