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Saint George, UT planting calendar

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, 2026 (±10 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.

These dates are typical for the whole city. Enter your ZIP for frost dates from the station nearest you:

Month by month in Saint George, UT

January

February

March

April

September

December

Understand your frost dates

More Utah planting calendars

ZIP codes in Saint George

84770, 84790

Where these dates come from

Frost dates for Saint George, UTare NOAA 1991–2020 climate normals from a station representative of the area, which covers 2 ZIP codes. Individual ZIP codes within it can run earlier or later.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.