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Libby, MT planting calendar

When to plant vegetables in Libby, MT (USDA hardiness zone 6a). Typical last spring frost around May 11, 2026 11 days year to year), first fall frost around Oct 1, 202613 days).

Playing it safe? Spring frost holds off until about May 25, 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 Libby calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Libby, MT’s first frost (~Oct 1, 2026) — fastest first.

Month by month in Libby, MT

February

March

April

May

June

July

August

Understand your frost dates

More Montana planting calendars

ZIP codes in Libby

59923

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