What plant hardiness zone is Sun Valley Ski Area

Sun Valley Ski Area is located at Blaine County, Idaho (ID), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Sun Valley Ski Area is 5b by the USDA scale.

Coldest zone's winter temperature is −15 … -10 °F.

Plants of 5b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 5b USDA.