When to plant sweet potato in South Carolina
South Carolina spans USDA zones 8a–9b, so the right time to plant sweet potato shifts by weeks across the state. The window to transplant seedlings outdoors runs from about February 25 in Charleston to May 11 in Gaffney — below are local dates for 63 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Charleston | 9a | February 4 | December 30 | February 25 – March 11 |
| Columbia | 8b | March 22 | November 15 | April 12 – April 26 |
| North Charleston | 9a | March 7 | November 27 | March 28 – April 11 |
| Mount Pleasant | 9a | March 13 | November 30 | April 3 – April 17 |
| Rock Hill | 8a | March 27 | November 5 | April 17 – May 1 |
| Greenville | 8a | March 28 | November 7 | April 18 – May 2 |
| Summerville | 8b | March 22 | November 12 | April 12 – April 26 |
| Goose Creek | 8b | March 7 | November 27 | March 28 – April 11 |
Sweet Potato in South Carolina: FAQ
When can I plant sweet potato in South Carolina?
Across South Carolina, the time to transplant sweet potato spans roughly February 25 in Charleston to May 11 in Gaffney, each following that city's local frost dates.
Does the sweet potato planting date vary across South Carolina?
Yes. South Carolina publishes 63 cities with their own frost dates, so the right sweet potato planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does sweet potato take to grow in South Carolina?
Sweet Potato takes about 90–120 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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