What plant hardiness zone is Nkishka No 2

Nkishka No 2 is located at Kenai Peninsula Borough, Alaska (AK), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Nkishka No 2 is 4b by the USDA scale.

Coldest zone's winter temperature is −25 … -20 °F.

Plants of 4b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 4b USDA.