Colorado Mountain Gardening Basics (CSU extension service – TONS of information)
Plant Talk – Research based information
Seed suppliers – NON GMO
bbbseed – local, mostly organic, reliable; and their website is LOADED with information including the “Wikiseedia”
Botanical Interests – another local seed vendor with a great website
Seeds Trust – dedicated to teaching people to save their own seeds. They do sell their own high quality seeds, including high altitude specific seed.
Miss Penn’s Mountain Seeds (from the Wild Mountain Gardening folks) Special short season varieties
Saving Our Seeds This is information written for the Mid-Atlantic and the South but it pertains to our region too in large part.