What plant hardiness zone is Jackson Junction

Jackson Junction is located at Winneshiek County, Iowa (IA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Jackson Junction 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.