What plant hardiness zone is South International Falls

South International Falls is located at Koochiching County, Minnesota (MN), USA.

Plant hardiness zone (winter frost zone or gardening zone) for South International Falls 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.

South International Falls, Minnesota @ wikipedia.