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Napa, CA planting calendar

When to plant vegetables in Napa, CA (USDA hardiness zone 9b). Typical last spring frost around Feb 12, 2026 27 days year to year), first fall frost around Dec 4, 202620 days).

Playing it safe? Spring frost holds off until about Mar 18, 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 Napa calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Napa, CA’s first frost (~Dec 4, 2026) — fastest first.

Month by month in Napa, CA

January

February

March

April

September

November

December

Understand your frost dates

Frost dates are NOAA 1991–2020 climate normals for a representative location in Napa, CA (covering 2 ZIPs); your exact dates depend on your address. Schedules are guidance, not guarantees.