When to plant yardlong bean in Hawaii
Hawaii spans USDA zone 12a, so the right time to plant yardlong bean shifts by weeks across the state. The window to transplant seedlings outdoors runs from about February 9 in Kapaa to February 9 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 | February 9 – February 16 |
Yardlong Bean in Hawaii: FAQ
When can I plant yardlong bean in Hawaii?
Across Hawaii, the time to transplant yardlong bean spans roughly February 9 in Kapaa to February 9 in Kapaa, each following that city's local frost dates.
Does the yardlong bean planting date vary across Hawaii?
Yes. Hawaii publishes 1 cities with their own frost dates, so the right yardlong bean 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 yardlong bean take to grow in Hawaii?
Yardlong Bean takes about 70–90 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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