What plant hardiness zone is Black Diamond

Black Diamond is located at Foothills County, Alberta (AB), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Black Diamond is 3b by the PHZ Canadian scale.

Plants of 3b PHZ hardiness zone suitable for outdoor gardening and growing in this winter frost zone 3b PHZ.

Also perennial plants from the equivalent USDA zone 2b with coldest winter temperature −42.8 … −40 °C and lower can be grown here, see list of plants for 2b USDA winter zone.

Black Diamond, Alberta @ wikipedia.