Southeastern Wisconsin Till Plains

The Southeastern Wisconsin Till Plains cover the country between Rockford, Madison, Milwaukee, and Kenosha. It was oak savanna and tallgrass prairie over glacial till before it was farmed and built on, and the soil left behind is rich and holds water well. Natives such as prairie dropseed, prairie dock, and sweet coneflower come from those savanna and prairie remnants, and they give a front yard structure that stands up through winter.

Conditions: Rich loam over glacial till, 32–36 inches of precipitation, cold snowy winters and warm humid summers, generally reliable moisture.

Cities and areas: Rockford, Milwaukee, Madison, Racine, Kenosha, Janesville.