What plant hardiness zone is Pittsburg

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

Plant hardiness zone (winter frost zone or gardening zone) for Pittsburg is 3b by the USDA scale.

Coldest zone's winter temperature is −35 … -30 °F.

Plants of 3b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 3b USDA.

Pittsburg, New Hampshire @ wikipedia.