What plant hardiness zone is Union Mills

Union Mills is located at LaPorte County, Indiana (IN), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Union Mills is 5b by the USDA scale.

Coldest zone's winter temperature is −15 … -10 °F.

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

Union Mills, Indiana @ wikipedia.