What plant hardiness zone is Smith Island

Smith Island is located at Somerset County, Maryland (MD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Smith Island is 8a by the USDA scale.

Coldest zone's winter temperature is +10 … +15 °F.

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

Smith Island, Maryland @ wikipedia.