Professional Green Organizations
- Oregon Association of Nurseries
- The trade association for the Oregon greenhouse/nursery industry. Lots of links and information about regional industry shows such as Yard, Garden and Patio Show and the Farwest Show. Information on OAN scholarships also.
- Oregon Landscape Contractors Association
- The trade association for the Oregon landscaping industry.
- Oregon Garden
- Located in Silverton, Oregon, the garden is a botanically challenging, world-class facility which showcases the wealth of plant material that can be used in the Pacific Northwest.
- Oregon State University's Landscape Plants
- This site contains images and information on over 570 landscape plants (mostly woody) listed in alphabetical order, by genus.
- Association of Northwest Landscape Designers
- The ANLD is a professional organization that was created 25 years ago for landscape designers in Oregon and Washington. It provides a forum where landscape designers can network, learn, and encourage one another in their professional pursuits.
- Association of Professional Landscape Designers
- The APLD is a nationwide professional organization for landscape designers that has an Oregon chapter. It has a certification process for professional designers and hosts seminars and workshops in the area.
- International Society of Arboriculture (ISA), Pacific Northwest Chapter
- The regional professional organization for the tree care industry. The ISA has a certification process for arborists and hosts tree care related seminars in the area. Lots of great links to tree care information and a local list of certified arborists.
- The Irrigation Association
- Professional organization for the irrigation professionals.
- Hardy Plant Society of Oregon
- Non-profit volunteer organization for gardeners of all levels. Sponsors annual plant sales, events, and has an extensive garden-related associations links page on their website
- Siskiyou Field Institute
- The Siskiyou Field Institute deepens people's scientific understanding and intimate connection to the Klamath-Siskiyou bioregion by providing educational programs and outdoor experiences to a broad spectrum of the public.
- American Horticultural Society
- The American Horticultural Society (AHS) is one of the oldest national gardening organizations in the country. Since 1922, we have provided America's gardeners with the highest quality gardening and horticultural education possible.
- The Oregon State University Master Gardener™ Program
- is an Oregon State University (OSU) Extension Service program that educates Oregonians about the art and science of growing and caring for plants. This program also facilitates the training of a highly educated corp of volunteers. These volunteers extend sustainable gardening information to their communities through education and outreach programs.

