What plant hardiness zone is Rose Harbour
Rose Harbour is located at North Coast Regional District, British Columbia (BC), Canada.
Plant hardiness zone (winter frost zone or gardening zone) for Rose 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.
Rose Harbour, British Columbia @ wikipedia.