What plant hardiness zone is Loon Mountain Ski Area

Loon Mountain Ski Area is located at Grafton County, New Hampshire (NH), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Loon Mountain Ski Area is 5a by the USDA scale.

Coldest zone's winter temperature is −20 … -15 °F.

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