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Mackinaw City, MI planting calendar

When to plant vegetables in Mackinaw City, MI (USDA hardiness zone 5b). Typical last spring frost around May 7, 2026 11 days year to year), first fall frost around Oct 23, 202612 days).

Playing it safe? Spring frost holds off until about May 21, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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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Still time to plant

As of today, these crops can still reach harvest before Mackinaw City, MI’s first frost (~Oct 23, 2026) — fastest first.

Month by month in Mackinaw City, MI

January

February

March

April

May

June

August

Understand your frost dates

More Michigan planting calendars

ZIP codes in Mackinaw City

49701

Frost dates are NOAA 1991–2020 climate normals for a representative location in Mackinaw City, MI (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.