What plant hardiness zone is Cottage Hills

Cottage Hills is located at Madison County, Illinois (IL), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Cottage Hills 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.