What plant hardiness zone is Barnum Island

Barnum Island is located at Nassau County, New York (NY), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Barnum Island is 7b by the USDA scale.

Coldest zone's winter temperature is +5 … +10 °F.

Plants of 7b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 7b USDA.

Barnum Island, New York @ wikipedia.