What plant hardiness zone is Mission Ridge

Mission Ridge is located at Stanley County, South Dakota (SD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Mission Ridge 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.

Mission Ridge, South Dakota @ wikipedia.