When to plant borage in South Carolina
South Carolina spans USDA zones 8a–9b, so the right time to plant borage shifts by weeks across the state. The window to sow seed directly outdoors runs from about February 4 in Charleston to April 20 in Gaffney — below are local dates for 63 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Charleston | 9a | February 4 | December 30 | February 4 – February 18 |
| Columbia | 8b | March 22 | November 15 | March 22 – April 5 |
| North Charleston | 9a | March 7 | November 27 | March 7 – March 21 |
| Mount Pleasant | 9a | March 13 | November 30 | March 13 – March 27 |
| Rock Hill | 8a | March 27 | November 5 | March 27 – April 10 |
| Greenville | 8a | March 28 | November 7 | March 28 – April 11 |
| Summerville | 8b | March 22 | November 12 | March 22 – April 5 |
| Goose Creek | 8b | March 7 | November 27 | March 7 – March 21 |
Borage in South Carolina: FAQ
When can I plant borage in South Carolina?
Across South Carolina, the time to direct-sow borage spans roughly February 4 in Charleston to April 20 in Gaffney, each following that city's local frost dates.
Does the borage planting date vary across South Carolina?
Yes. South Carolina publishes 63 cities with their own frost dates, so the right borage 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 borage take to grow in South Carolina?
Borage takes about 50–60 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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