Canada

Canada Gardens
A resource for Canadian gardeners that includes a forum, articles and links to Canadian suppliers.
http://canada-gardens.com/

Gardening BC
Directory of gardening resources, including lists of gardens, arboreta, associations, shows, and supply stores in British Columbia.
http://www.gardeningbc.com/

Government of Newfoundland & Labrador: Lawn & Garden
Series of articles including garden guides, plant, insect, and organic factsheets, hobby greenhouses, and garden tools.
http://www.nr.gov.nl.ca/agric/lawn_garden/

iCanGarden.com
Started by Master Gardener, Donna Dawson. Offers a member's area, news, articles, book reviews, clubs, suppliers, pictures and links.
http://www.icangarden.com/

Ontario Gardening
Features directories, tips, articles, discussions, and general gardening information. Available only with free membership (need Canadian address).
http://www.ontariogardening.com/

Zone 8 Garden
This is a regional garden site for Canada's west coast. It features a listing of public gardens, and information on plants and resources for this region.
http://www.zone8garden.com