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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 serving gardeners of all skill levels. Our membership includes the new gardener to the professional designer. Founded in 1984, HPSO currently has nearly 3,000 members throughout the Pacific Northwest in Oregon, Southwest Washington, and beyond.