What plant hardiness zone is Bretton Woods

Bretton Woods is located at Coos County, New Hampshire (NH), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Bretton Woods 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.