What plant hardiness zone is Allison Harbour

Allison Harbour is located at Regional District of Mount Waddington, British Columbia (BC), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Allison Harbour is 9b by the PHZ Canadian scale.

Also perennial plants from the equivalent USDA zone 8b with coldest winter temperature −9.4 … −6.7 °C and lower can be grown here, see list of plants for 8b USDA winter zone.

Allison Harbour, British Columbia @ wikipedia.