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Rohnert Park, CA planting calendar

When to plant vegetables in Rohnert Park, CA (USDA hardiness zone 9a). Typical last spring frost around Feb 25, 2026 26 days year to year), first fall frost around Dec 1, 202617 days).

Playing it safe? Spring frost holds off until about Mar 30, 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 Rohnert Park, CA’s first frost (~Dec 1, 2026) — fastest first.

Month by month in Rohnert Park, CA

January

February

March

April

September

December

Understand your frost dates

More California planting calendars

ZIP codes in Rohnert Park

94928

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