What plant hardiness zone is Lower Post

Lower Post is located at Stikine Region, British Columbia (BC), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Lower Post is 1b by the PHZ Canadian scale.

Also perennial plants from the equivalent USDA zone 0b with coldest winter temperature −53.9 … −51.1 °C and lower can be grown here.

Lower Post, British Columbia @ wikipedia.