What plant hardiness zone is South Sutton

South Sutton is located at Merrimack County, New Hampshire (NH), USA.

Plant hardiness zone (winter frost zone or gardening zone) for South Sutton 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.

South Sutton, New Hampshire @ wikipedia.