What plant hardiness zone is Detroit

Detroit is located at Lamar County, Alabama (AL), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Detroit is 7b by the USDA scale.

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

Plants of 7b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 7b USDA.