Best Cool Seeds is in partnership with Denali Seed Company, America's foremost authority on cool climate gardening. The garden varieties sold in this e-store have been performance tested in Alaska in private gardens and in university trials for over 50 years. Our veteran horticulturist has taught and worked with gardeners in arctic and sub-arctic locations for over 30 years and only varieties that will mature in these regions are sold in this e-store. Our horticulturist has selected the varieties available in this e-store because they excel in cool northern climates that include arctic and sub-arctic regions, and mountain areas.