What plant hardiness zone is Spring Valley

Spring Valley is located at Pierce County, Wisconsin (WI), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Spring Valley 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.

Spring Valley, Wisconsin @ wikipedia.