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Planting calendar for ZIP 55001 (Afton, MN)

When to plant vegetables in Afton, MN (USDA hardiness zone 5a). Typical last spring frost around Apr 22, 2026 11 days year to year), first fall frost around Oct 19, 202612 days).

Playing it safe? Spring frost holds off until about May 6, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Afton, MN

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 55001: NOAA 1991-2020 normals (USC00218037 STILLWATER 1 SE, MN US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.