When to plant Onion sets in Indiana
In spring, from Feb 15 – Mar 20 in Clarksville to Mar 10 – Apr 1 in Zionsville.
In fall, Oct 1 – Dec 1.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Anderson | Mar 10 – Apr 1 | Spring-planted |
| Auburn | Mar 10 – Apr 10 | Spring-planted |
| Avon | Mar 1 – Apr 1 | Not listed |
| Bargersville | Mar 10 – Apr 1 | Spring-planted |
| Bedford | Mar 10 – Apr 1 | Spring-planted |
| Beech Grove | Mar 10 – Apr 1 | Spring-planted |
| Bloomington | Mar 1 – Apr 1 | Not listed |
| Bluffton | Mar 10 – Apr 1 | Spring-planted |
| Brownsburg | Mar 1 – Apr 1 | Not listed |
| Carmel | Mar 10 – Apr 1 | Spring-planted |
| Cedar Lake | Mar 10 – Apr 10 | Spring-planted |
| Chesterton | Mar 10 – Apr 1 | Not listed |
| Clarksville | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Columbia City | Mar 10 – Apr 10 | Spring-planted |
| Columbus | Mar 1 – Apr 1 | Spring-planted |
| Connersville | Mar 10 – Apr 10 | Spring-planted |
| Crawfordsville | Mar 10 – Apr 10 | Spring-planted |
| Crown Point | Mar 10 – Apr 10 | Spring-planted |
| Danville | Mar 1 – Apr 1 | Not listed |
| Decatur | Mar 10 – Apr 1 | Spring-planted |
| Dyer | Mar 10 – Apr 1 | Spring-planted |
| East Chicago | Mar 10 – Apr 1 | Spring-planted |
| Elkhart | Mar 10 – Apr 10 | Spring-planted |
| Evansville | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Fishers | Mar 10 – Apr 1 | Spring-planted |
| Fort Wayne | Mar 10 – Apr 1 | Spring-planted |
| Frankfort | Mar 10 – Apr 1 | Spring-planted |
| Franklin | Mar 10 – Apr 1 | Spring-planted |
| Gary | Mar 10 – Apr 1 | Not listed |
| Goshen | Mar 10 – Apr 10 | Spring-planted |
| Greenfield | Mar 10 – Apr 1 | Spring-planted |
| Greensburg | Mar 1 – Apr 1 | Not listed |
| Greenwood | Mar 10 – Apr 1 | Spring-planted |
| Griffith | Mar 10 – Apr 1 | Spring-planted |
| Hammond | Mar 10 – Apr 1 | Spring-planted |
| Highland | Mar 10 – Apr 1 | Spring-planted |
| Hobart | Mar 10 – Apr 1 | Spring-planted |
| Huntertown | Mar 10 – Apr 10 | Spring-planted |
| Huntington | Mar 10 – Apr 10 | Spring-planted |
| Indianapolis | Mar 10 – Apr 1 | Spring-planted |
| Jasper | Mar 1 – Apr 1 | Not listed |
| Jeffersonville | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Kendallville | Mar 10 – Apr 10 | Spring-planted |
| Kokomo | Mar 10 – Apr 10 | Spring-planted |
| La Porte | Mar 10 – Apr 1 | Not listed |
| Lafayette | Mar 10 – Apr 10 | Spring-planted |
| Lake Station | Mar 10 – Apr 1 | Not listed |
| Lawrence | Mar 10 – Apr 1 | Not listed |
| Lebanon | Mar 10 – Apr 1 | Spring-planted |
| Logansport | Mar 10 – Apr 1 | Spring-planted |
| Lowell | Mar 10 – Apr 10 | Spring-planted |
| Madison | Mar 1 – Apr 1 | Not listed |
| Marion | Mar 10 – Apr 10 | Spring-planted |
| Martinsville | Mar 10 – Apr 1 | Spring-planted |
| McCordsville | Mar 10 – Apr 1 | Not listed |
| Merrillville | Mar 10 – Apr 1 | Spring-planted |
| Michigan City | Mar 10 – Apr 1 | Not listed |
| Mishawaka | Mar 10 – Apr 1 | Spring-planted |
| Mooresville | Mar 1 – Apr 1 | Not listed |
| Muncie | Mar 10 – Apr 1 | Spring-planted |
| Munster | Mar 10 – Apr 1 | Spring-planted |
| New Albany | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| New Castle | Mar 10 – Apr 10 | Spring-planted |
| New Haven | Mar 10 – Apr 10 | Spring-planted |
| Noblesville | Mar 10 – Apr 1 | Spring-planted |
| Peru | Mar 10 – Apr 1 | Spring-planted |
| Plainfield | Mar 1 – Apr 1 | Not listed |
| Plymouth | Mar 10 – Apr 1 | Spring-planted |
| Portage | Mar 10 – Apr 1 | Not listed |
| Richmond | Mar 10 – Apr 1 | Spring-planted |
| Schererville | Mar 10 – Apr 1 | Spring-planted |
| Sellersburg | Feb 15 – Mar 20 | Oct 1 – Dec 1Now |
| Seymour | Mar 10 – Apr 1 | Spring-planted |
| Shelbyville | Mar 10 – Apr 1 | Spring-planted |
| South Bend | Mar 10 – Apr 1 | Spring-planted |
| Speedway | Mar 1 – Apr 1 | Not listed |
| St. John | Mar 10 – Apr 1 | Spring-planted |
| Terre Haute | Mar 1 – Apr 1 | Spring-planted |
| Valparaiso | Mar 10 – Apr 1 | Spring-planted |
| Vincennes | Mar 1 – Apr 1 | Not listed |
| Wabash | Mar 10 – Apr 1 | Spring-planted |
| Warsaw | Mar 10 – Apr 10 | Spring-planted |
| Washington | Mar 1 – Apr 1 | Spring-planted |
| West Lafayette | Mar 10 – Apr 10 | Spring-planted |
| Westfield | Mar 10 – Apr 1 | Spring-planted |
| Whitestown | Mar 10 – Apr 1 | Spring-planted |
| Yorktown | Mar 10 – Apr 1 | Spring-planted |
| Zionsville | Mar 10 – Apr 1 | Spring-planted |
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 onion sets.