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Saint Mary, MO planting calendar

When to plant vegetables in Saint Mary, MO (USDA hardiness zone 6b). Typical last spring frost around Apr 19, 2026 12 days year to year), first fall frost around Oct 20, 202610 days).

Playing it safe? Spring frost holds off until about May 4, 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:

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Still time to plant

As of today, these crops can still reach harvest before Saint Mary, MO’s first frost (~Oct 20, 2026) — fastest first.

Month by month in Saint Mary, MO

January

February

March

April

May

August

Understand your frost dates

More Missouri planting calendars

ZIP codes in Saint Mary

63673

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