What plant hardiness zone is Kobuk

Kobuk is located at Northwest Arctic Borough, Alaska (AK), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Kobuk is 2a by the USDA scale.

Coldest zone's winter temperature is −50 … -45 °F.

Plants of 2a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 2a USDA.