What plant hardiness zone is Saint Helena Island

Saint Helena Island is located at Beaufort County, South Carolina (SC), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Saint Helena Island is 8b by the USDA scale.

Coldest zone's winter temperature is +15 … +20 °F.

Plants of 8b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 8b USDA.