What plant hardiness zone is Ross

Ross is located at Roseau County, Minnesota (MN), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Ross 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.