When to plant cardoon in Rhode Island
Rhode Island spans USDA zones 6b–7a, so the right time to plant cardoon shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 7 in Newport to April 22 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 | April 11 – April 25 |
| Cranston | 7a | April 11 | October 30 | April 11 – April 25 |
| Warwick | 7a | April 11 | October 30 | April 11 – April 25 |
| Pawtucket | 7a | April 22 | October 19 | April 22 – May 6 |
| East Providence | 7a | April 11 | October 30 | April 11 – April 25 |
| Woonsocket | 6b | April 22 | October 19 | April 22 – May 6 |
| Newport | 7a | April 7 | November 13 | April 7 – April 21 |
| Central Falls | 7a | April 22 | October 19 | April 22 – May 6 |
Cardoon in Rhode Island: FAQ
When can I plant cardoon in Rhode Island?
Across Rhode Island, the time to transplant cardoon spans roughly April 7 in Newport to April 22 in Pawtucket, each following that city's local frost dates.
Does the cardoon planting date vary across Rhode Island?
Yes. Rhode Island publishes 11 cities with their own frost dates, so the right cardoon 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 cardoon take to grow in Rhode Island?
Cardoon takes about 120–150 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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