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Kalispell, MT planting calendar

When to plant vegetables in Kalispell, MT (USDA hardiness zone 5b). Typical last spring frost around May 31, 2026 16 days year to year), first fall frost around Sep 10, 202612 days).

Playing it safe? Spring frost holds off until about Jun 20, 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 Kalispell calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Kalispell, MT’s first frost (~Sep 10, 2026) — fastest first.

Month by month in Kalispell, MT

February

March

April

May

June

July

Understand your frost dates

More Montana planting calendars

ZIP codes in Kalispell

59901

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