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Planting calendar for ZIP 48050 (New Haven, MI)

When to plant vegetables in New Haven, MI (USDA hardiness zone 6a). Typical last spring frost around May 1, 2026 11 days year to year), first fall frost around Oct 20, 202612 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 New Haven, MI planting calendar for dates typical of the whole city.

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Month by month in New Haven, MI

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 48050: NOAA 1991-2020 normals (USC00206982 RICHMOND 4 NNW, MI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.