What plant hardiness zone is Fort Halkett

Fort Halkett is located at Northern Rockies Regional Municipality, British Columbia (BC), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Fort Halkett is 2a by the PHZ Canadian scale.

Also perennial plants from the equivalent USDA zone 1a with coldest winter temperature −51.1 … −48.3 °C and lower can be grown here.

Fort Halkett @ wikipedia.