What plant hardiness zone is Horse Branch
Horse Branch is located at Ohio County, Kentucky (KY), USA.
Plant hardiness zone (winter frost zone or gardening zone) for Horse Branch is 6b by the USDA scale.
Coldest zone's winter temperature is −5 … 0 °F.
Plants of 6b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6b USDA.
Horse Branch, Kentucky @ wikipedia.