When to plant sweet potato in Tennessee
Tennessee spans USDA zones 7a–8a, so the right time to plant sweet potato shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 6 in Memphis to May 13 in Halls — below are local dates for 67 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Nashville-Davidson | 7b | April 1 | October 31 | April 22 – May 6 |
| Memphis | 8a | March 16 | November 16 | April 6 – April 20 |
| Knoxville | 7b | April 11 | October 28 | May 2 – May 16 |
| Chattanooga | 8a | March 24 | November 9 | April 14 – April 28 |
| Clarksville | 7b | April 3 | November 1 | April 24 – May 8 |
| Murfreesboro | 7b | April 9 | October 27 | April 30 – May 14 |
| Franklin | 7b | April 3 | October 31 | April 24 – May 8 |
| Johnson City | 7b | April 19 | October 24 | May 10 – May 24 |
Sweet Potato in Tennessee: FAQ
When can I plant sweet potato in Tennessee?
Across Tennessee, the time to transplant sweet potato spans roughly April 6 in Memphis to May 13 in Halls, each following that city's local frost dates.
Does the sweet potato planting date vary across Tennessee?
Yes. Tennessee publishes 67 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 Tennessee?
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.
Never miss a window in your area
An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.