What plant hardiness zone is Hardin

Hardin is located at Calhoun County, Illinois (IL), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Hardin is 6a by the USDA scale.

Coldest zone's winter temperature is −10 … -5 °F.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.