What plant hardiness zone is Saint Michael

Saint Michael is located at Benson County, North Dakota (ND), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Saint Michael 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.

Saint Michael, North Dakota @ wikipedia.