Tip Sheet #1
Gardening Websites

• WSU Extension site, Gardening in Washington – information on many gardening topics. 
• WSU Extension publications – many available for free download. 
• King County Master Gardener program, plant clinics, demonstration gardens, and more.
• Linda Chalker-Scott, WSU Extension Urban Horticulturist – common myths about gardening. 
• Oregon State University Extension – gardening articles, month-by-month gardening calendars, et al. 
• University of Washington’s Miller Library site – Gardening Answers Knowledgebase, list of regional plant sales and garden tours, directory of horticultural websites, extensive resource lists and resources for plants. 
• Fact sheets and photos of ~1000 plants that perform well in the Pacific Northwest and are relatively low maintenance. Plant lists and advanced search options. Sponsored by Elisabeth C. Miller Botanical Garden. 

• WSU Extension Hortsense and Pestsense – advice on plant pest and disease problems. Includes information on weeds and Washington-registered pesticides.
• Pacific Northwest plant disease, insect and weed management handbooks online. Sponsored by WSU, Oregon State U. and U. of Idaho. 
• King County Noxious Weed Control Program – weeds on the noxious weed list, including control strategies. 
• EXtension TOXicology NETwork – cooperative effort of UC Davis, OSU, Michigan State U., Cornell U., and U. of Idaho – Information on pesticides, pesticide use and toxicity.
• Guide to choosing safer pesticides and garden products. 

• King County Solid Waste Division – composting and improving soil health. 
• Seattle Tilth – composting methods and bins (including worm composting), plans for building composters. 
• King Conservation District – soil testing program. 
• WSU Puyallup – extensive information on soils and soil testing and interpreting results. 

• King County Water & Land Resources Division – Northwest Native Plant Guide – plant lists, photos, and landscape plans. 
• King County Natural Resources & Parks Division – Native Plant Resources for the Pacific Northwest. 
• Washington Native Plant Society – plant lists, publications, plant sales. 

• Water utilities in King County – gardening advice, videos, classes. 
• Seattle Public Utilities – lawn care advice and resources. 
• Seattle Public Utilities – Integrated Pest Management, including Facts Sheets on moss, pests and weeds. 
• King County Natural Resources & Parks – Natural Yard Care – ways to have healthy lawns and gardens with less pesticide use. 
• Washington State Department of Fish & Wildlife: Living with Wildlife. 
• King County Public Health – landscaping tips for septic systems. 
• Washington Poison Center, statewide provider of assistance regarding exposure to poisonous, hazardous, or toxic substances, including plants. Go to website or call 1-800-222-1222

Local plant nurseries and seed companies often have helpful information at their websites. Two of the most useful are: Territorial Seeds and Raintree Nursery.