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Sault Sainte Marie, MI planting calendar

When to plant vegetables in Sault Sainte Marie, MI (USDA hardiness zone 4b). Typical last spring frost around May 9, 2026 12 days year to year), first fall frost around Oct 11, 202612 days).

Playing it safe? Spring frost holds off until about May 24, 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 Sault Sainte Marie, MI’s first frost (~Oct 11, 2026) — fastest first.

Month by month in Sault Sainte Marie, MI

February

March

April

May

June

July

August

Understand your frost dates

More Michigan planting calendars

ZIP codes in Sault Sainte Marie

49783

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