When to plant sweet potato in Rhode Island
Rhode Island spans USDA zones 6b–7a, so the right time to plant sweet potato shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 28 in Newport to May 13 in Pawtucket — below are local dates for 11 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Providence | 7a | April 11 | October 30 | May 2 – May 16 |
| Cranston | 7a | April 11 | October 30 | May 2 – May 16 |
| Warwick | 7a | April 11 | October 30 | May 2 – May 16 |
| Pawtucket | 7a | April 22 | October 19 | May 13 – May 27 |
| East Providence | 7a | April 11 | October 30 | May 2 – May 16 |
| Woonsocket | 6b | April 22 | October 19 | May 13 – May 27 |
| Newport | 7a | April 7 | November 13 | April 28 – May 12 |
| Central Falls | 7a | April 22 | October 19 | May 13 – May 27 |
Sweet Potato in Rhode Island: FAQ
When can I plant sweet potato in Rhode Island?
Across Rhode Island, the time to transplant sweet potato spans roughly April 28 in Newport to May 13 in Pawtucket, each following that city's local frost dates.
Does the sweet potato planting date vary across Rhode Island?
Yes. Rhode Island publishes 11 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 Rhode Island?
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.