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Hortlandia
PlantFest
Quarterly Magazine
Retailer Discounts
Gen(i)us Program
Garden Travel
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After Hours
Plant Nerd Night
Lending Library
Study Weekend
E-Newsletter
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Education
Links to the horticultural sites of other educational and non-profit organizations:
Arnoldia
Butterfly Web Site
Cabrillo College Horticulture
Clematis Database at Hull University
Cornell University
Elisabeth C. Miller Library, Center for Urban Horticulture, University of Washington
Great Plant Picks
Illinois Cooperative Extension Service
Iowa State University
Juniper and Sage
Museum of Garden History
National Public Radio/Talking Plants
NatureScaping of SW Washington
New Jersey Agricultural Weed Gallery
Ohio State University
Oregon Association of Nurseries
Oregon Metro - Natural Gardening
Oregon State University Extension Master Gardeners
Oregon State University Horticulture
Pacific Horticulture
Perry's Perennial Pages
Seattle Tilth
Trees of the Pacific Northwest
University of British Columbia Garden & Center for Plant Research
University of California Weed Photo Gallery
University of Connecticut Plant Database
USDA Plants Database
Washington State University
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Upcoming Events
Sun Nov 1, 2020
HPSO Annual Meeting
Category: Programs
Sat Apr 17, 2021
Hortlandia 2021
Category: Events
Tue May 25, 2021
Overseas tour: "A Nordic Adventure: Gardens & Castles of Denmark and southern Sweden"
Category: Travel Tours
Wed Jun 9, 2021
Overseas tour: Southern France: "The Mystical Land of the Dordogne, of Carcassonne, & Picture-book Provence"
Category: Travel Tours
Mon Jul 26, 2021
Overseas tour: "Ireland: "Discover the Enchanted Gardens of the Republic of Ireland"
Category: Travel Tours
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