What plant hardiness zone is Mount Washington

Mount Washington is located at Bullitt County, Kentucky (KY), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Mount Washington 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.

Mount Washington, Kentucky @ wikipedia.