When to plant Sweet potatoes in South Dakota
In spring, May 20 – June 10.
In fall, May 20 – June 10.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Aberdeen | Not listed | Not listed |
| Box Elder | Not listed | Not listed |
| Brandon | May 20 – June 10 | May 20 – June 10 |
| Brookings | Not listed | Not listed |
| Harrisburg | May 20 – June 10 | Not listed |
| Huron | Not listed | Not listed |
| Mitchell | May 20 – June 10 | May 20 – June 10 |
| Pierre | Not listed | Not listed |
| Rapid City | May 20 – June 10 | May 20 – June 10 |
| Sioux Falls | May 20 – June 10 | May 20 – June 10 |
| Spearfish | Not listed | Not listed |
| Vermillion | May 20 – June 10 | Not listed |
| Watertown | Not listed | Not listed |
| Yankton | May 20 – June 10 | May 20 – June 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 potatoes.