When to plant Sweet corn in South Dakota
In spring, May 10 – June 1.
In fall, June 1 – July 1.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Aberdeen | May 10 – June 1 | June 1 – July 1 |
| Box Elder | May 10 – June 1 | June 1 – July 1 |
| Brandon | May 10 – June 15 | June 1 – July 10 |
| Brookings | May 10 – June 1 | June 1 – July 1 |
| Harrisburg | May 10 – June 15 | June 1 – July 1 |
| Huron | May 10 – June 1 | June 1 – July 1 |
| Mitchell | May 10 – June 15 | June 1 – July 10 |
| Pierre | May 10 – June 1 | June 1 – July 1 |
| Rapid City | May 10 – June 15 | June 1 – July 10 |
| Sioux Falls | May 10 – June 15 | June 1 – July 10 |
| Spearfish | May 10 – June 1 | June 1 – July 1 |
| Vermillion | May 10 – June 15 | June 1 – July 1 |
| Watertown | May 10 – June 1 | June 1 – July 1 |
| Yankton | May 10 – June 15 | June 1 – July 10 |
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 corn.