This publication from University of Illinois Extension covers the basics of growing plants in pots, and also includes sections on topiary, “blueprints” for container designs, and how to make a hanging basket.
Hardy Fern Foundation Digitized Publications in Biodiversity Heritage Library
Arboretum Foundation Digitized Publications in Biodiversity Heritage Library
Northwest Horticultural Society Digitized Publications in Biodiversity Heritage Library
Purdue University: NewCROP Resource Online Program
An extensive searchable index for new or specialty food crops. Geared to the professional grower, yet still useful to the home gardener.
Choosing the Right Plants
This Seattle Public Utilities site includes links to pdf files for choosing the right plant for the right place and a plant list for the Pacific Northwest.
Washington Native Plant Society Noxious Weed Project
Information on helping to collect noxious weeds for science in Washington State.
Pacific Northwest Nursery IPM
“This website has been established to provide educational materials and links for the identification and management of pests in commercial nursery production in the Pacific Northwest.”
King County Noxious Weed ID
Photos and descriptions for weed identification in King County, WA. Search by common name, Latin name, or thumbnail photo.
Center for Invasive Species and Ecosystem Health
“The overall objective of Invasive.org is: to provide an accessible and easily used archive of high quality images related to invasive and exotic species, with particular emphasis on educational applications.”