When to plant cardoon in Vermont
Vermont spans USDA zones 5a–5b, so the right time to plant cardoon shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 29 in Burlington to May 15 in Rutland — below are local dates for 4 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Burlington | 5b | April 29 | October 15 | April 29 – May 13 |
| South Burlington | 5a | April 29 | October 15 | April 29 – May 13 |
| Rutland | 5a | May 15 | September 27 | May 15 – May 29 |
| Essex Junction | 5a | May 2 | October 11 | May 2 – May 16 |
Cardoon in Vermont: FAQ
When can I plant cardoon in Vermont?
Across Vermont, the time to transplant cardoon spans roughly April 29 in Burlington to May 15 in Rutland, each following that city's local frost dates.
Does the cardoon planting date vary across Vermont?
Yes. Vermont publishes 4 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 Vermont?
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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