What plant hardiness zone is Willow City

Willow City is located at Bottineau County, North Dakota (ND), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Willow City is 3a by the USDA scale.

Coldest zone's winter temperature is −40 … -35 °F.

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

Willow City, North Dakota @ wikipedia.