HPSO header logo The Hardy Plant Society of Oregon


HPSO home page

HPSO calendar page

HPSO plant sale page

HPSO grant info page

HPSO plant quiz page

  -Mission Statement
  -Contact Info


The Hardy Plant Society of Oregon is a non-profit volunteer organization for beginning, experienced, amateur and professional gardeners. Founded in 1985 and dedicated to the promotion of hardy herbaceous perennials, the society now has nearly 2,000 members throughout the Pacific Northwest and beyond.

HPSO provides a wide variety of activities and benefits to its members including:

  • Monthly newsletter and twice annual Bulletin of interesting articles and news.
  • Program slide lectures featuring prominent national and local horticultural speakers.
  • Plant sales are held twice a year with over 70 participating growers from all over the Northwest.
  • Study groups, community grant programs, book sales, seed sales and much more! Click on Membership to learn more about the wide variety of activities and benefits HPSO provides to its members.

Our History

The history of the Hardy Plant Society of Oregon started in the 1970’s, when Marvin Black, a Seattle horticulturist, on a gardener’s exploration of England, discovered Great Britain’s Hardy Plant Society. Marvin was impressed with the organization’s possibilities and turned to his gardening friends for support in organizing the first American Hardy Plant Society. In June of 1980, this group sponsored the first Pacific Northwest Hardy Plant Society Study Weekend at Edmonds Community College.

Eventually, a group of Oregonians, tired of traveling to Seattle for garden events, met with Marvin to plan the beginnings of the Hardy Plant Society of Oregon. HPSO has subsequently inspired the development of several other gardening groups. Throughout the years many dedicated volunteers have been responsible for building and continuing the missions of the Hardy Plant Society of Oregon.


Our Mission

The mission of the Hardy Plant Society of Oregon is to encourage interest in herbaceous perennial plants by:

  • Promoting education and understanding of herbaceous perennial plants through workshops, lectures, study weekends, classes, publications, book sales, mentoring, trips and tours.

  • Fostering networks and informal gathering of the membership.

  • Supporting worthwhile community gardening projects.

  • Sponsoring plant and seed sales or exchanges.

  • Encouraging the preservation of special gardens of botanical, horticultural, or historic interest.

Contact Information

(503) 224-5718
Office hours: Monday, Wednesday & Friday
1-6 p.m.
(503) 224-5734
Postal address
1930 NW Lovejoy Street
Portland, OR 97209-1504
(Location Map)
Information: admin@hardyplantsociety.org

  Back to Top



Copyright © 1998-2001 The Hardy Plant Society of Oregon.
All rights reserved
Last modified: May 17, 2001