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Planting calendar for ZIP 84790 (Saint George, UT)

When to plant vegetables in Saint George, UT (USDA hardiness zone 8b). Typical last spring frost around Mar 14, 2026 15 days year to year), first fall frost around Nov 10, 202610 days).

Playing it safe? Spring frost holds off until about Apr 2, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Saint George, UT planting calendar for dates typical of the whole city.

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Month by month in Saint George, UT

January

February

March

April

August

September

December

Understand your frost dates

Frost dates for ZIP 84790: NOAA 1991-2020 normals (USC00427516 ST GEORGE, UT US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.