(*) The Oregon State University Extension Service has compiled a ton of useful information about gardening. Find monthly garden calendars, weed and insect management, and how-to resources through this site.
Weed Photo Index
Published by the King County Library in Seattle, this photo index allows you to identify noxious weeds by photograph. You can also search for weeds by their common or Latin names.
Oregon Department of Agriculture
Find resources from the state government about weed control, pesticides, natural resources, and more.
Oregon Smart Guides - Rainwater Harvesting
Follow the link on this page to this excellent Oregon Smart Guide to Rainwater Harvesting to learn about collecting and irrigating with rainwater.
Learn how to garden organically through this site, which includes information about fertilizers, composting, and kids and gardening. Also, find information about shopping and cooking organic on this site.
Herb Gardening Guide
Information about how to grow a variety of herbs for culinary and medicinal use. Learn how to grow herbs in your garden, in containers, in hydroponics, and indoors.
Greenhouse Gardener's Companion
An online guide to greenhouse construction, gardening, and maintenance, including resources for kits and related products.
Learn about the benefits of composting, how to compost using various methods, and how to use compost in your garden and yard in this guide from King County Library in Seattle.
Expert garden plant advice, tips, and ideas from Fine Gardening magazine, including design, care, and how-to garden techniques.
National Gardening Association
The National Gardening Association brings you information about gardening, but also about grants related to gardening, a public garden directory, and many guides about kids and gardening.
The Garden Helper
Information on gardening, flowers and plants for beginners.
This site provides information about general gardening, plus organic gardening, pests and diseases, and a community section. A unique feature includes a recipe finder for turning garden produce into meals.
Better Homes & Gardens
Look past the busy appearance of this site to find a wealth of information about plants, flowers, gardening, landscaping, and more from this trusted source.
Trees Are Good
Check the Tree Care Information section for a wide variety of information about tree selection, planting, and care. Find resources about choosing and hiring a tree care professional, too, on this site all about trees.