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Planting calendar for ZIP 48618 (Coleman, MI)

When to plant vegetables in Coleman, MI (USDA hardiness zone 6a). Typical last spring frost around May 15, 2026 13 days year to year), first fall frost around Sep 29, 202610 days).

Playing it safe? Spring frost holds off until about May 31, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Coleman, MI planting calendar for dates typical of the whole city.

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Month by month in Coleman, MI

February

March

April

May

June

July

August

Understand your frost dates

Frost dates for ZIP 48618: NOAA 1991-2020 normals (USC00206080 OIL CITY 2S, MI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.