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Join one of the West Coast's largest gardening communities—almost 3,000 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, 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 (HPSO) is a 501(c)(3) non-profit volunteer organization for all gardeners - beginners and experienced, amateurs and professionals. Founded in 1984, HPSO currently has nearly 3,000 members throughout the Pacific Northwest in Oregon, Southwest Washington, and beyond.