What plant hardiness zone is Rolling Hills

Rolling Hills is located at Converse County, Wyoming (WY), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Rolling Hills 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.

Rolling Hills, Wyoming @ wikipedia.