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Grow With Us

Join one of the West Coast's largest gardening communities—over 2,500 members strong! As a member of HPSO, you’ll gain access to our top-notch educational programs, a wide array of local private gardens, a diverse domestic & international garden tour program, our magazine & newsletter, our horticultural lending library, and discounts at local garden retailers. Plus, you'll meet other gardeners who share your passion.

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The Hardy Plant Society of Oregon, commonly known as HPSO, is a non-profit volunteer organization for all gardeners: beginning or experienced, amateur or professional. Founded in 1984 the Society currently has over 2,500 members throughout the Pacific Northwest in Oregon, Southwest Washington, and beyond.

Call for Speakers

HPSO is actively recruiting speakers for future programming. Please visit our Call for Speakers page for more details.

Special notice: We are monitoring the Covid-19 epidemic regarding its impact on HPSO activities. At this time, the HPSO office is closed to meetings and visitors. Our Open Gardens program has restarted on an appointment-only basis.  Our 2020 overseas garden tours are postponed to 2021. With the cancellation of Hortlandia, a virtual site is now active with links to our vendors’ own websites: https://blog.hardyplantsociety.org/hortlandia-2020/

Follow Hardy Plant Society of Oregon on Facebook and Instagram to join our online community.

Members: Please read your weekly email for links to additional content, and be well and be safe!

Virtual Garden Tours

Open Gardens

Open Gardens

Garden Travel

Garden Travel

Plant Sales

Plant Sales

Speaker Programs

Speaker Programs