Plants of the Pacific Northwest Coast — Washington, Oregon, British Columbia & Alaska, Jim Pojar & Andy MacKinnon, editors., 528 p; Lone Pine Publishing, 1994.
Gardening with Native Plants of the Pacific Northwest, Arthur R. Kruckeberg, 284 p; UW Press, second edition , revised 1996.
Landscaping for Wildlife in the Pacific Northwest, Russell Link, 320 p; UW Press/Washington Dept. of Fish & Wildlife, 1999
Citizens Guide to Noxious Weeds, King County Noxious Weeds Control Program, 52 p, 2006.
Integrated Pest Management: WSU Hortsense Website: hortsense.cahnrs.wsu.edu
Washington State Compost Educator’s Guide, Westcott, Bary, Cogger, & Sullivan, Washington State University & Washington Dept of Ecology, 2009.