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Planting calendar for ZIP 96704 (Captain Cook, HI)

When to plant vegetables in Captain Cook, HI (USDA hardiness zone 12b). Typical last spring frost around Apr 12, 2026 26 days year to year), first fall frost around Dec 1, 202623 days).

Playing it safe? Spring frost holds off until about May 15, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Captain Cook, HI planting calendar for dates typical of the whole city.

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Month by month in Captain Cook, HI

January

February

March

April

May

September

Understand your frost dates

Frost dates for ZIP 96704: NOAA 1991-2020 normals (USW00021514 MAUNA LOA 5 NNE, HI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.