What plant hardiness zone is Port Heiden

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

Plant hardiness zone (winter frost zone or gardening zone) for Port Heiden is 5b by the USDA scale.

Coldest zone's winter temperature is −15 … -10 °F.

Plants of 5b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 5b USDA.