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Posen, MI planting calendar

When to plant vegetables in Posen, MI (USDA hardiness zone 5b). Typical last spring frost around May 13, 2026 12 days year to year), first fall frost around Oct 3, 20269 days).

Playing it safe? Spring frost holds off until about May 28, 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:

Or get a printable Posen calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Posen, MI’s first frost (~Oct 3, 2026) — fastest first.

Month by month in Posen, MI

February

March

April

May

June

July

August

Understand your frost dates

More Michigan planting calendars

ZIP codes in Posen

49776

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