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Dagmar, MT planting calendar

When to plant vegetables in Dagmar, MT (USDA hardiness zone 3b). Typical last spring frost around May 16, 2026 10 days year to year), first fall frost around Sep 18, 20268 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 Dagmar calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Dagmar, MT’s first frost (~Sep 18, 2026) — fastest first.

Month by month in Dagmar, MT

February

March

April

May

June

July

Understand your frost dates

More Montana planting calendars

ZIP codes in Dagmar

59219

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