What plant hardiness zone is Mountain Lakes

Mountain Lakes is located at Grafton County, New Hampshire (NH), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Mountain Lakes 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.