When to Plant Sweet Corn in South Carolina
In South Carolina, the time to sow sweet corn outside runs from Feb 11 – Feb 25 in Charleston to Apr 27 – May 11 in Gaffney. In Charleston, it's Feb 11 – Feb 25. The average last spring frost differs by about 11 weeks across the state (Feb 4 in Charleston, Apr 20 in Gaffney), so use the dates for the town nearest you.
Sow corn in blocks rather than single rows so it pollinates well. Wait for soil around 60°F.
- Sow outside: 1–3 weeks after the last frost.
Sweet Corn planting dates in South Carolina by city
| City | Zone | Sow outside |
|---|---|---|
| Aiken | 8b | Mar 26 – Apr 9 |
| Anderson | 8a | Mar 30 – Apr 13 |
| Beaufort | 9a | Mar 7 – Mar 21 |
| Bluffton | 9a | Mar 9 – Mar 23 |
| Cayce | 8b | Mar 20 – Apr 3 |
| Charleston | 9a | Feb 11 – Feb 25 |
| Clemson | 8a | Apr 8 – Apr 22 |
| Columbia | 8b | Mar 29 – Apr 12 |
| Conway | 8b | Mar 22 – Apr 5 |
| Easley | 8a | Apr 8 – Apr 22 |
| Florence | 8b | Mar 26 – Apr 9 |
| Fort Mill | 8a | Apr 7 – Apr 21 |
| Fountain Inn | 8a | Apr 5 – Apr 19 |
| Gaffney | 8a | Apr 27 – May 11 |
| Goose Creek | 8b | Mar 14 – Mar 28 |
| Greenville | 8a | Apr 4 – Apr 18 |
| Greenwood | 8a | Apr 2 – Apr 16 |
| Greer | 8a | Apr 4 – Apr 18 |
| Hanahan | 9a | Mar 14 – Mar 28 |
| Hardeeville | 9a | Mar 9 – Mar 23 |
| Hilton Head Island | 9b | Mar 10 – Mar 24 |
| Irmo | 8b | Apr 17 – May 1 |
| James Island | 9a | Feb 11 – Feb 25 |
| Lexington | 8b | Apr 1 – Apr 15 |
| Mauldin | 8a | Apr 4 – Apr 18 |
| Moncks Corner | 8b | Mar 17 – Mar 31 |
| Mount Pleasant | 9a | Mar 20 – Apr 3 |
| Myrtle Beach | 8b | Mar 28 – Apr 11 |
| North Augusta | 8b | Mar 6 – Mar 20 |
| North Charleston | 9a | Mar 14 – Mar 28 |
| North Myrtle Beach | 8b | Mar 20 – Apr 3 |
| Orangeburg | 8b | Mar 20 – Apr 3 |
| Port Royal | 9a | Mar 10 – Mar 24 |
| Rock Hill | 8a | Apr 3 – Apr 17 |
| Simpsonville | 8a | Apr 5 – Apr 19 |
| Spartanburg | 8a | Apr 15 – Apr 29 |
| Summerville | 8b | Mar 29 – Apr 12 |
| Sumter | 8b | Mar 31 – Apr 14 |
| Tega Cay | 8a | Apr 7 – Apr 21 |
| West Columbia | 8b | Apr 1 – Apr 15 |
Calculated from each town's average (50%) frost dates, from the nearest NOAA station (1991–2020). Typical dates for the 2027 planting season, based on NOAA's 1991–2020 averages. They are long-term odds, not a forecast: always check your local forecast before planting. Zones: 2023 USDA Plant Hardiness Zone Map (USDA-ARS and Oregon State University). Not the official map; see planthardiness.ars.usda.gov.
See all frost dates in South Carolina, or the general guide to when to plant sweet corn.
Getting beds ready? Work out how much raised bed soil, compost or mulch you need with our sister site, Yard Coverage.