When to Plant Corn in Wisconsin
In a typical Wisconsin location, sow outdoors Apr 30 – May 14. Across the state, the outdoor planting window starts as early as Apr 19 in Kenosha and as late as May 11 in Merrill.
Direct sow at last frost to 2 weeks after, once soil reaches 60F; does not transplant well. Succession sow every 2 weeks.
Corn Planting Dates by City
| City | Direct sow |
|---|---|
| Milwaukee | Apr 26 – May 10 |
| Madison | May 1 – May 15 |
| Green Bay | May 7 – May 21 |
| Kenosha | Apr 19 – May 3 |
| Racine | Apr 20 – May 4 |
| Appleton | May 4 – May 18 |
| Waukesha | May 1 – May 15 |
| Eau Claire | Apr 24 – May 8 |
| Oshkosh | Apr 24 – May 8 |
| Janesville | Apr 26 – May 10 |
| West Allis | Apr 26 – May 10 |
| La Crosse | Apr 27 – May 11 |
| North La Crosse | Apr 23 – May 7 |
| Sheboygan | Apr 25 – May 9 |
| Wauwatosa | Apr 26 – May 10 |
| Fond du Lac | Apr 27 – May 11 |
| New Berlin | May 3 – May 17 |
| Wausau | May 6 – May 20 |
| Brookfield | Apr 30 – May 14 |
| Greenfield | May 3 – May 17 |
| Beloit | May 1 – May 15 |
| Franklin | May 3 – May 17 |
| Menomonee Falls | May 6 – May 20 |
| Oak Creek | Apr 22 – May 6 |
| Manitowoc | Apr 30 – May 14 |
| Sun Prairie | May 1 – May 15 |
| West Bend | May 1 – May 15 |
| Fitchburg | May 1 – May 15 |
| Stevens Point | May 4 – May 18 |
| Superior | May 6 – May 20 |
Showing the 30 most populous of 96 Wisconsin cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Wisconsin cities.
Frequently Asked Questions
When should I plant corn in Wisconsin?
In a typical Wisconsin location, sow outdoors Apr 30 – May 14. Across the state, the outdoor planting window starts as early as Apr 19 in Kenosha and as late as May 11 in Merrill.
When is the last frost in Wisconsin?
The average last spring frost in Wisconsin ranges from April 19 in Kenosha to May 11 in Merrill, based on NOAA 1991–2020 climate normals.
How long do corn take to grow?
Corn typically take 60–100 days from planting to harvest. Direct sow at last frost to 2 weeks after, once soil reaches 60F; does not transplant well. Succession sow every 2 weeks.
Other Crops in Wisconsin
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Sweet Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant corn in other states