What plant hardiness zone is Cadillac

Cadillac is located at Rouyn-Noranda, Quebec (QC), Canada.

Plant hardiness zone (winter frost zone or gardening zone) for Cadillac is 2b by the PHZ Canadian scale.

Also perennial plants from the equivalent USDA zone 1b with coldest winter temperature −48.3 … −45.6 °C and lower can be grown here.

Cadillac, Quebec @ wikipedia.