What plant hardiness zone is Saint Paul Island

Saint Paul Island is located at Unorganized Borough, Alaska (AK), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Saint Paul Island 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.