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Ishpeming, MI planting calendar

When to plant vegetables in Ishpeming, MI (USDA hardiness zone 4b). Typical last spring frost around May 26, 2026 11 days year to year), first fall frost around Sep 25, 202614 days).

Playing it safe? Spring frost holds off until about Jun 9, 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 Ishpeming, MI’s first frost (~Sep 25, 2026) — fastest first.

Month by month in Ishpeming, MI

February

March

April

May

June

July

Understand your frost dates

More Michigan planting calendars

ZIP codes in Ishpeming

49849

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