Wisconsin Planting Zones & Schedule

Wisconsin’s USDA growing zones range from Zone 3b to Zone 6a, depending on where you are in the state. Northwestern Wisconsin falls primarily in Zone 4 with small areas of Zone 3b at high elevation where you can grow cold-hardy crops like root vegetables, asparagus, and rhubarb.

The rest of the state falls in Zones 5a and 5b with a small area along Lake Michigan in Zone 6a. This moderate climate is suitable for cool-season crops like carrots, spinach, and kale.

Wisconsin Last & First Frost Dates

City	Last Frost Date	First Frost Date
Appleton	5/11	10/11
Beloit	5/1	10/11
Eau Claire	5/11	10/1
Green Bay	5/11	10/1
Howard	5/11	10/1
Kenosha	5/1	10/21
La Crosse	5/1	10/11
Madison	5/11	10/1
Milwaukee	5/1	10/21
Mount Pleasant	4/21	10/21

*Keep in mind that frost can occur before or after these dates. Watch your local weather to determine the best time to plant.

The growing season in Wisconsin averages between 110 and 120 days, though southern areas may have up to 140 frost-free days. Refer to the planting schedules below to determine the best timing for your zone.