When to plant cardoon in Hawaii
Hawaii spans USDA zone 12a, so the right time to plant cardoon shifts by weeks across the state. The window to transplant seedlings outdoors runs from about January 26 in Kapaa to January 26 in Kapaa — below are local dates for 1 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Kapaa | 12a | January 26 | January 24 | January 26 – February 9 |
Cardoon in Hawaii: FAQ
When can I plant cardoon in Hawaii?
Across Hawaii, the time to transplant cardoon spans roughly January 26 in Kapaa to January 26 in Kapaa, each following that city's local frost dates.
Does the cardoon planting date vary across Hawaii?
Yes. Hawaii publishes 1 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 Hawaii?
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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