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Portola, CA planting calendar

When to plant vegetables in Portola, CA (USDA hardiness zone 6b). Typical last spring frost around Jun 11, 2026 15 days year to year), first fall frost around Sep 10, 202614 days).

Playing it safe? Spring frost holds off until about Jun 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:

Or get a printable Portola calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Portola, CA’s first frost (~Sep 10, 2026) — fastest first.

Month by month in Portola, CA

March

April

May

June

July

Understand your frost dates

More California planting calendars

ZIP codes in Portola

96122

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