When to plant Lettuce in Wisconsin
In spring, from Mar 20 – May 15 in Caledonia to Apr 15 – June 15 in Wisconsin Rapids.
In fall, from June 1 – Aug 1 in Baraboo to Aug 15 – Oct 1 in South Milwaukee.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Allouez | Apr 1 – June 1 | July 15 – Sept 1 |
| Appleton | Apr 1 – June 1 | July 15 – Sept 1 |
| Ashwaubenon | Apr 1 – June 1 | July 15 – Sept 1 |
| Baraboo | Apr 1 – June 1 | June 1 – Aug 1 |
| Beaver Dam | Apr 1 – June 1 | July 15 – Sept 1 |
| Bellevue | Apr 1 – June 1 | July 15 – Sept 1 |
| Beloit | Apr 1 – June 1 | July 15 – Sept 1 |
| Brookfield | Apr 1 – June 1 | July 15 – Sept 1 |
| Brown Deer | Apr 1 – June 1 | July 15 – Sept 1 |
| Burlington | Apr 1 – June 1 | July 15 – Sept 1 |
| Caledonia | Mar 20 – May 15 | July 15 – Sept 1 |
| Cedarburg | Mar 20 – May 15 | July 15 – Sept 1 |
| Chippewa Falls | Apr 15 – June 15 | June 1 – Aug 1 |
| Cudahy | Mar 20 – May 15 | Aug 15 – Oct 1 |
| De Pere | Apr 1 – June 1 | July 15 – Sept 1 |
| DeForest | Apr 1 – June 1 | July 15 – Sept 1 |
| Eau Claire | Mar 20 – May 15 | July 15 – Sept 1 |
| Elkhorn | Apr 1 – June 1 | July 15 – Sept 1 |
| Fitchburg | Apr 1 – June 1 | July 15 – Sept 1 |
| Fond du Lac | Apr 1 – June 1 | July 15 – Sept 1 |
| Fort Atkinson | Apr 1 – June 1 | July 15 – Sept 1 |
| Fox Crossing | Apr 1 – June 1 | July 15 – Sept 1 |
| Franklin | Apr 1 – June 1 | July 15 – Sept 1 |
| Germantown | Apr 15 – June 15 | July 15 – Sept 1 |
| Glendale | Apr 1 – June 1 | July 15 – Sept 1 |
| Grafton | Mar 20 – May 15 | July 15 – Sept 1 |
| Green Bay | Apr 15 – June 15 | July 15 – Sept 1 |
| Greendale | Apr 1 – June 1 | July 15 – Sept 1 |
| Greenfield | Apr 1 – June 1 | July 15 – Sept 1 |
| Greenville | Apr 1 – June 1 | July 15 – Sept 1 |
| Harrison | Apr 1 – June 1 | July 15 – Sept 1 |
| Hartford | Apr 15 – June 15 | June 1 – Aug 1 |
| Hartland | Apr 1 – June 1 | July 15 – Sept 1 |
| Hobart | Apr 1 – June 1 | July 15 – Sept 1 |
| Holmen | Mar 20 – May 15 | July 15 – Sept 1 |
| Howard | Apr 15 – June 15 | July 15 – Sept 1 |
| Hudson | Mar 20 – May 15 | July 15 – Sept 1 |
| Janesville | Apr 1 – June 1 | July 15 – Sept 1 |
| Kaukauna | Apr 1 – June 1 | July 15 – Sept 1 |
| Kenosha | Apr 1 – June 1 | July 15 – Sept 1 |
| La Crosse | Apr 1 – June 1 | July 15 – Sept 1 |
| Lisbon | Apr 1 – June 1 | July 15 – Sept 1 |
| Little Chute | Apr 1 – June 1 | July 15 – Sept 1 |
| Madison | Apr 1 – June 1 | July 15 – Sept 1 |
| Manitowoc | Apr 1 – June 1 | July 15 – Sept 1 |
| Marinette | Apr 1 – June 1 | July 15 – Sept 1 |
| Marshfield | Apr 1 – June 1 | June 1 – Aug 1 |
| Menasha | Apr 1 – June 1 | July 15 – Sept 1 |
| Menomonee Falls | Apr 15 – June 15 | July 15 – Sept 1 |
| Menomonie | Apr 15 – June 15 | June 1 – Aug 1 |
| Mequon | Apr 15 – June 15 | July 15 – Sept 1 |
| Middleton | Apr 1 – June 1 | July 15 – Sept 1 |
| Milwaukee | Apr 1 – June 1 | July 15 – Sept 1 |
| Monroe | Apr 1 – June 1 | July 15 – Sept 1 |
| Mount Pleasant | Mar 20 – May 15 | July 15 – Sept 1 |
| Muskego | Apr 1 – June 1 | July 15 – Sept 1 |
| Neenah | Apr 1 – June 1 | July 15 – Sept 1 |
| New Berlin | Apr 1 – June 1 | July 15 – Sept 1 |
| New Richmond | Mar 20 – May 15 | July 15 – Sept 1 |
| Oak Creek | Mar 20 – May 15 | Aug 15 – Oct 1 |
| Oconomowoc | Apr 1 – June 1 | July 15 – Sept 1 |
| Onalaska | Mar 20 – May 15 | July 15 – Sept 1 |
| Oregon | Apr 1 – June 1 | July 15 – Sept 1 |
| Oshkosh | Mar 20 – May 15 | July 15 – Sept 1 |
| Pewaukee | Apr 1 – June 1 | July 15 – Sept 1 |
| Platteville | Apr 1 – June 1 | July 15 – Sept 1 |
| Pleasant Prairie | Mar 20 – May 15 | Aug 15 – Oct 1 |
| Plover | Apr 1 – June 1 | July 15 – Sept 1 |
| Port Washington | Apr 1 – June 1 | July 15 – Sept 1 |
| Racine | Mar 20 – May 15 | July 15 – Sept 1 |
| Reedsburg | Apr 1 – June 1 | July 15 – Sept 1 |
| Richfield | Apr 1 – June 1 | July 15 – Sept 1 |
| River Falls | Apr 15 – June 15 | June 1 – Aug 1 |
| Salem Lakes | Apr 1 – June 1 | July 15 – Sept 1 |
| Sheboygan | Mar 20 – May 15 | July 15 – Sept 1 |
| Shorewood | Apr 1 – June 1 | July 15 – Sept 1 |
| South Milwaukee | Mar 20 – May 15 | Aug 15 – Oct 1 |
| Stevens Point | Apr 1 – June 1 | July 15 – Sept 1 |
| Stoughton | Apr 1 – June 1 | July 15 – Sept 1 |
| Suamico | Apr 15 – June 15 | July 15 – Sept 1 |
| Sun Prairie | Apr 1 – June 1 | July 15 – Sept 1 |
| Superior | Apr 15 – June 15 | July 15 – Sept 1 |
| Sussex | Apr 1 – June 1 | July 15 – Sept 1 |
| Two Rivers | Apr 1 – June 1 | July 15 – Sept 1 |
| Verona | Apr 1 – June 1 | July 15 – Sept 1 |
| Watertown | Apr 1 – June 1 | July 15 – Sept 1 |
| Waukesha | Apr 1 – June 1 | July 15 – Sept 1 |
| Waunakee | Apr 1 – June 1 | July 15 – Sept 1 |
| Waupun | Apr 1 – June 1 | July 15 – Sept 1 |
| Wausau | Apr 15 – June 15 | June 1 – Aug 1 |
| Wauwatosa | Apr 1 – June 1 | July 15 – Sept 1 |
| West Allis | Apr 1 – June 1 | July 15 – Sept 1 |
| West Bend | Apr 1 – June 1 | July 15 – Sept 1 |
| Weston | Apr 15 – June 15 | June 1 – Aug 1 |
| Whitefish Bay | Apr 1 – June 1 | July 15 – Sept 1 |
| Whitewater | Apr 1 – June 1 | July 15 – Sept 1 |
| Windsor | Apr 1 – June 1 | July 15 – Sept 1 |
| Wisconsin Rapids | Apr 15 – June 15 | June 1 – Aug 1 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. The full USDA table for leaf lettuce.