What plant hardiness zone is Ham Lake

Ham Lake is located at Anoka County, Minnesota (MN), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Ham Lake is 4b by the USDA scale.

Coldest zone's winter temperature is −25 … -20 °F.

Plants of 4b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 4b USDA.

Ham Lake, Minnesota @ wikipedia.