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Planting calendar for ZIP 85705 (Tucson, AZ)

When to plant vegetables in Tucson, AZ (USDA hardiness zone 9b). Typical last spring frost around Feb 11, 2026 20 days year to year), first fall frost around Dec 2, 202613 days).

Playing it safe? Spring frost holds off until about Mar 8, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Tucson, AZ planting calendar for dates typical of the whole city.

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Month by month in Tucson, AZ

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 85705: NOAA 1991-2020 normals (USC00028817 TUCSON U OF A #1, AZ US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.