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Saint Johns, AZ planting calendar

When to plant vegetables in Saint Johns, AZ (USDA hardiness zone 6b). Typical last spring frost around May 2, 2026 11 days year to year), first fall frost around Oct 14, 20269 days).

Playing it safe? Spring frost holds off until about May 16, 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 Johns, AZ’s first frost (~Oct 14, 2026) — fastest first.

Month by month in Saint Johns, AZ

January

February

March

April

May

August

Understand your frost dates

More Arizona planting calendars

ZIP codes in Saint Johns

85936

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