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Planting calendar for ZIP 55602 (Brimson, MN)

When to plant vegetables in Brimson, MN (USDA hardiness zone 3b). Typical last spring frost around May 27, 2026 11 days year to year), first fall frost around Sep 23, 202612 days).

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

See the full Brimson, MN planting calendar for dates typical of the whole city.

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Month by month in Brimson, MN

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 55602: NOAA 1991-2020 normals (USC00218421 TWO HARBORS 7NW, MN US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.