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Planting calendar for ZIP 96708 (Haiku, HI)

When to plant vegetables in Haiku, HI (USDA hardiness zone 12a). 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 Haiku, HI planting calendar for dates typical of the whole city.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

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Month by month in Haiku, HI

January

February

March

April

May

September

Understand your frost dates

Frost dates for ZIP 96708: 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.