When to plant bitter melon in Hawaii
Hawaii spans USDA zone 12a, so the right time to plant bitter melon 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 |
Bitter Melon in Hawaii: FAQ
When can I plant bitter melon in Hawaii?
Across Hawaii, the time to transplant bitter melon spans roughly February 9 in Kapaa to February 9 in Kapaa, each following that city's local frost dates.
Does the bitter melon planting date vary across Hawaii?
Yes. Hawaii publishes 1 cities with their own frost dates, so the right bitter melon 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 bitter melon take to grow in Hawaii?
Bitter Melon takes about 55–70 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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