Interesting societies and botanical gardens, many with links to other similar sites
Links to the horticultural sites of other educational and non-profit organizations
Other Hardy Plant societies and groups.
The Hardy Plant Society of Oregon has editorial control over which links are included on this website.
Links that may be included on the webpage are sites of non-profit, horticulture-related organizations, such as societies, botanical gardens, and educational institutions. Please share with us links that are consistent with HPSO's policy on links by emailing them to the HPSO office.