What plant hardiness zone is Port Alsworth

Port Alsworth is located at Lake and Peninsula Borough, Alaska (AK), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Port Alsworth is 3b by the USDA scale.

Coldest zone's winter temperature is −35 … -30 °F.

Plants of 3b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 3b USDA.

Port Alsworth, Alaska @ wikipedia.