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Planting calendar for ZIP 59222 (Flaxville, MT)

When to plant vegetables in Flaxville, MT (USDA hardiness zone 4a). Typical last spring frost around May 28, 2026 11 days year to year), first fall frost around Sep 7, 202611 days).

Playing it safe? Spring frost holds off until about Jun 11, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Flaxville, MT planting calendar for dates typical of the whole city.

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Month by month in Flaxville, MT

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 59222: NOAA 1991-2020 normals (USC00246927 REDSTONE, MT US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.