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American Canyon, CA planting calendar

When to plant vegetables in American Canyon, CA (USDA hardiness zone 9b). Typical last spring frost around Mar 5, 2026 31 days year to year), first fall frost around Nov 21, 202616 days).

Playing it safe? Spring frost holds off until about Apr 13, 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 American Canyon calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before American Canyon, CA’s first frost (~Nov 21, 2026) — fastest first.

Month by month in American Canyon, CA

January

February

March

April

September

December

Understand your frost dates

More California planting calendars

ZIP codes in American Canyon

94503

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