What plant hardiness zone is South Milwaukee
South Milwaukee is located at Milwaukee County, Wisconsin (WI), USA.
Plant hardiness zone (winter frost zone or gardening zone) for South Milwaukee is 5b by the USDA scale.
Coldest zone's winter temperature is −15 … -10 °F.
Plants of 5b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 5b USDA.
South Milwaukee, Wisconsin @ wikipedia.