When to plant Sweet potatoes in Indiana
In spring, from Apr 20 – June 1 in Clarksville to May 20 – June 10 in West Lafayette.
In fall, from May 20 – June 10 in Auburn to June 1 – 15 in Zionsville.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Anderson | May 10 – June 10 | June 1 – 15 |
| Auburn | May 20 – June 10 | May 20 – June 10 |
| Avon | May 1 – June 1 | June 1 – 15 |
| Bargersville | May 10 – June 10 | June 1 – 15 |
| Bedford | May 10 – June 10 | June 1 – 15 |
| Beech Grove | May 10 – June 10 | June 1 – 15 |
| Bloomington | May 1 – June 1 | June 1 – 15 |
| Bluffton | May 10 – June 10 | June 1 – 15 |
| Brownsburg | May 1 – June 1 | June 1 – 15 |
| Carmel | May 10 – June 10 | June 1 – 15 |
| Cedar Lake | May 20 – June 10 | June 1 – 15 |
| Chesterton | May 10 – June 10 | June 1 – 15 |
| Clarksville | Apr 20 – June 1 | June 1 – July 1 |
| Columbia City | May 20 – June 10 | June 1 – 15 |
| Columbus | May 1 – June 1 | June 1 – 15 |
| Connersville | May 20 – June 10 | May 20 – June 10 |
| Crawfordsville | May 20 – June 10 | May 20 – June 10 |
| Crown Point | May 20 – June 10 | June 1 – 15 |
| Danville | May 1 – June 1 | June 1 – 15 |
| Decatur | May 10 – June 10 | June 1 – 15 |
| Dyer | May 10 – June 10 | June 1 – 15 |
| East Chicago | May 10 – June 10 | June 1 – 15 |
| Elkhart | May 20 – June 10 | June 1 – 15 |
| Evansville | Apr 20 – June 1 | June 1 – July 1 |
| Fishers | May 10 – June 10 | June 1 – 15 |
| Fort Wayne | May 10 – June 10 | June 1 – 15 |
| Frankfort | May 10 – June 10 | June 1 – 15 |
| Franklin | May 10 – June 10 | June 1 – 15 |
| Gary | May 10 – June 10 | June 1 – 15 |
| Goshen | May 20 – June 10 | June 1 – 15 |
| Greenfield | May 10 – June 10 | June 1 – 15 |
| Greensburg | May 1 – June 1 | June 1 – 15 |
| Greenwood | May 10 – June 10 | June 1 – 15 |
| Griffith | May 10 – June 10 | June 1 – 15 |
| Hammond | May 10 – June 10 | June 1 – 15 |
| Highland | May 10 – June 10 | June 1 – 15 |
| Hobart | May 10 – June 10 | June 1 – 15 |
| Huntertown | May 20 – June 10 | May 20 – June 10 |
| Huntington | May 20 – June 10 | May 20 – June 10 |
| Indianapolis | May 10 – June 10 | June 1 – 15 |
| Jasper | May 1 – June 1 | June 1 – 15 |
| Jeffersonville | Apr 20 – June 1 | June 1 – July 1 |
| Kendallville | May 20 – June 10 | June 1 – 15 |
| Kokomo | May 20 – June 10 | June 1 – 15 |
| La Porte | May 10 – June 10 | June 1 – 15 |
| Lafayette | May 20 – June 10 | June 1 – 15 |
| Lake Station | May 10 – June 10 | June 1 – 15 |
| Lawrence | May 10 – June 10 | June 1 – 15 |
| Lebanon | May 10 – June 10 | June 1 – 15 |
| Logansport | May 10 – June 10 | June 1 – 15 |
| Lowell | May 20 – June 10 | June 1 – 15 |
| Madison | May 1 – June 1 | June 1 – 15 |
| Marion | May 20 – June 10 | June 1 – 15 |
| Martinsville | May 10 – June 10 | May 20 – June 10 |
| McCordsville | May 10 – June 10 | June 1 – 15 |
| Merrillville | May 10 – June 10 | June 1 – 15 |
| Michigan City | May 10 – June 10 | June 1 – 15 |
| Mishawaka | May 10 – June 10 | June 1 – 15 |
| Mooresville | May 1 – June 1 | June 1 – 15 |
| Muncie | May 10 – June 10 | June 1 – 15 |
| Munster | May 10 – June 10 | June 1 – 15 |
| New Albany | Apr 20 – June 1 | June 1 – July 1 |
| New Castle | May 20 – June 10 | June 1 – 15 |
| New Haven | May 20 – June 10 | June 1 – 15 |
| Noblesville | May 10 – June 10 | June 1 – 15 |
| Peru | May 10 – June 10 | June 1 – 15 |
| Plainfield | May 1 – June 1 | June 1 – 15 |
| Plymouth | May 10 – June 10 | June 1 – 15 |
| Portage | May 10 – June 10 | June 1 – 15 |
| Richmond | May 10 – June 10 | June 1 – 15 |
| Schererville | May 10 – June 10 | June 1 – 15 |
| Sellersburg | Apr 20 – June 1 | June 1 – July 1 |
| Seymour | May 10 – June 10 | June 1 – 15 |
| Shelbyville | May 10 – June 10 | June 1 – 15 |
| South Bend | May 10 – June 10 | June 1 – 15 |
| Speedway | May 1 – June 1 | June 1 – 15 |
| St. John | May 10 – June 10 | June 1 – 15 |
| Terre Haute | May 1 – June 1 | June 1 – 15 |
| Valparaiso | May 10 – June 10 | June 1 – 15 |
| Vincennes | May 1 – June 1 | June 1 – 15 |
| Wabash | May 10 – June 10 | June 1 – 15 |
| Warsaw | May 20 – June 10 | June 1 – 15 |
| Washington | May 1 – June 1 | June 1 – 15 |
| West Lafayette | May 20 – June 10 | June 1 – 15 |
| Westfield | May 10 – June 10 | June 1 – 15 |
| Whitestown | May 10 – June 10 | June 1 – 15 |
| Yorktown | May 10 – June 10 | June 1 – 15 |
| Zionsville | May 10 – June 10 | June 1 – 15 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for sweet potatoes.