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Geraldine, MT planting calendar

When to plant vegetables in Geraldine, MT (USDA hardiness zone 4b). Typical last spring frost around May 14, 2026 10 days year to year), first fall frost around Sep 26, 20269 days).

Playing it safe? Spring frost holds off until about May 26, 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 Geraldine calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Geraldine, MT’s first frost (~Sep 26, 2026) — fastest first.

Month by month in Geraldine, MT

February

March

April

May

June

July

August

Understand your frost dates

More Montana planting calendars

ZIP codes in Geraldine

59446

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