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Ajo, AZ planting calendar

When to plant vegetables in Ajo, AZ (USDA hardiness zone 9b). Typical last spring frost around Jan 10, 2026 26 days year to year), first fall frost around Dec 21, 202623 days).

Playing it safe? Spring frost holds off until about Feb 12, 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 Ajo calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Ajo, AZ’s first frost (~Dec 21, 2026) — fastest first.

Month by month in Ajo, AZ

January

February

September

October

November

December

Understand your frost dates

More Arizona planting calendars

ZIP codes in Ajo

85321

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