When to plant butternut squash in Hawaii
Hawaii spans USDA zone 12a, so the right time to plant butternut squash shifts by weeks across the state. The window to sow seed directly outdoors runs from about February 2 in Kapaa to February 2 in Kapaa — below are local dates for 1 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Kapaa | 12a | January 26 | January 24 | February 2 – February 16 |
Butternut Squash in Hawaii: FAQ
When can I plant butternut squash in Hawaii?
Across Hawaii, the time to direct-sow butternut squash spans roughly February 2 in Kapaa to February 2 in Kapaa, each following that city's local frost dates.
Does the butternut squash planting date vary across Hawaii?
Yes. Hawaii publishes 1 cities with their own frost dates, so the right butternut squash 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 butternut squash take to grow in Hawaii?
Butternut Squash takes about 90–110 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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