What plant hardiness zone is Newton Junction

Newton Junction is located at Rockingham County, New Hampshire (NH), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Newton Junction is 6a by the USDA scale.

Coldest zone's winter temperature is −10 … -5 °F.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.

Newton Junction, New Hampshire @ wikipedia.