What plant hardiness zone is Chee House

Chee House is located at Stikine Region, British Columbia (BC), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Chee House 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.