What plant hardiness zone is Union Center

Union Center is located at Meade County, South Dakota (SD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Union Center 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.

Union Center, South Dakota @ wikipedia.