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Wilsall, MT planting calendar

When to plant vegetables in Wilsall, MT (USDA hardiness zone 4b). Typical last spring frost around Jun 8, 2026 15 days year to year), first fall frost around Sep 7, 202613 days).

Playing it safe? Spring frost holds off until about Jun 27, 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 Wilsall calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Wilsall, MT’s first frost (~Sep 7, 2026) — fastest first.

Month by month in Wilsall, MT

March

April

May

June

July

Understand your frost dates

More Montana planting calendars

ZIP codes in Wilsall

59086

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