What plant hardiness zone is Shell Valley

Shell Valley is located at Rolette County, North Dakota (ND), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Shell Valley 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.

Shell Valley, North Dakota @ wikipedia.