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Planting calendar for ZIP 49507 (Grand Rapids, MI)

When to plant vegetables in Grand Rapids, MI (USDA hardiness zone 6a). Typical last spring frost around May 6, 2026 11 days year to year), first fall frost around Oct 10, 202610 days).

Playing it safe? Spring frost holds off until about May 20, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Grand Rapids, MI

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March

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August

Understand your frost dates

Frost dates for ZIP 49507: NOAA 1991-2020 normals (USC00202375 E GRAND RAPIDS, MI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.