What plant hardiness zone is North Spearfish

North Spearfish is located at Lawrence County, South Dakota (SD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for North Spearfish is 5a by the USDA scale.

Coldest zone's winter temperature is −20 … -15 °F.

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

North Spearfish, South Dakota @ wikipedia.