What plant hardiness zone is Discovery Basin Ski Area

Discovery Basin Ski Area is located at Granite County, Montana (MT), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Discovery Basin Ski Area is 4b by the USDA scale.

Coldest zone's winter temperature is −25 … -20 °F.

Plants of 4b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 4b USDA.