What plant hardiness zone is North River

North River is located at Cass County, North Dakota (ND), USA.

Plant hardiness zone (winter frost zone or gardening zone) for North River is 4a by the USDA scale.

Coldest zone's winter temperature is −30 … -25 °F.

Plants of 4a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 4a USDA.

North River, North Dakota @ wikipedia.