 The Hardy Plant Society of Oregon, also known as HPSO, is a non-profit volunteer organization for gardeners of all levels: beginning through experienced; amateur through professional. Our primary focus is on hardy herbaceous perennial plants in the Pacific Northwest, but we're interested in all kinds of gardening, at all skill levels. Become a Member Today! Join or renew online. Or Print a membership form. Benefits of membership in HPSO.
Contributions to HPSO are tax-deductible. HPSO Grants Program. 2007 Grant Winners & Projects
2008 Open Garden Books now available. Over 90 gardens open to members through the spring, summer and fall! Open Gardens Information. If you'd like to join in the fun and visit great gardens every week, join HPSO online now.
HPSO Monthly Newsletter now available online.
The SPRING PLANT SALE & GARDEN FESTIVAL AT PORTLAND EXPO CENTER . . . . . . was a great success! Thank you to all the volunteers and vendors who worked long and hard to make it such a super event! To our shoppers, happy planting! Special kudos to HPSO President Bruce Wakefield and the all-volunteer Plant Sale Committee for pulling off the big switch to the EXPO Center so successfully. See you at the Fall Sale! Plant Sale Information & More Plant Sale Photos COMING EVENTS:
Landscaping with Organic Edibles - May 1. Home gardening expert Carl Grimm of Portland Metro on integrating edibles into your garden. Edibles Workshop Information. Registration for this workshop is now closed.
Spring Program: Making More Plants, Adventures in Horticulture - Saturday, May 17, 9 a.m. Selecting Iris from Around the World - June 10. Iris breeder and Genus Genius Terry Aitken will discuss Iris species in this fourth program in the popular Gen(i)us series. Iris Program Information.
Register online.
Garden Conservancy Open Days Garden Tour - June 14. Six very special SE Portland gardens open for this one day only. Co-sponsored by HPSO. GC Open Days Information.
Hebes, Cistus & Halimium, Oh My! - June 17. OSU Community Horticulturalist Neil Bell with a tour of the trial beds where he conducts hardiness research. Hebes Workshop Information.
Register online now.
Breaking the Rules - June 20-22. The Willamette Valley Hardy Plant Group presents the 2008 Study Weekend in Eugene, Oregon. For information and registration see the 2008 Study Weekend page.
Curing a 'Vine' Mess - July 10 & 12. Author and clematis diva Linda Beutler teaches the selection, pruning and maintenance of clematis, honeysuckle and other thugs. Thursday slide lecture at the HPSO office. Saturday workshop in Linda's own garden. Linda Beutler Workshop Information.
Register online now.
HPSO-SPONSORED GARDEN TOURS 2008:
The Gardens of Southwest England - May 2008. More Information. Itinerary. The Gardens of Philadelphia & Beyond - May 2008. More Information. Download tour flyer for complete details and registration form. A few spaces still remaining.
Garden Adventures in Netherlands, Germany and Belgium - September 2008. Visit gardens and gardeners on the cutting edge, the newest in designs and plants, in all their late-summer glory! More information. A few spaces still remaining. Photographs from 10 Years of HPSO Garden Tours. Office Hours: MWF 12 - 5 p.m.
Library Hours: The library is open the same hours as the office. Learn more about the Library.
Want to join? Or renew? Click here. If you live outside of Oregon and Southwest Washington,
and would like to find a Hardy Plant society or group near you, see
Links of Interest: Other Hardy Plant
Groups. Learn more about HPSO.
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