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Planting calendar for ZIP 92602 (Irvine, CA)

When to plant vegetables in Irvine, CA (USDA hardiness zone 10b). Typical last spring frost around Jan 5, 2026 20 days year to year), first fall frost around Dec 25, 202619 days).

Playing it safe? Spring frost holds off until about Jan 30, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Irvine, CA planting calendar for dates typical of the whole city.

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Month by month in Irvine, CA

January

February

October

November

December

Understand your frost dates

Frost dates for ZIP 92602: NOAA 1991-2020 normals (USC00049087 TUSTIN IRVINE RCH, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.