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Planting calendar for ZIP 91910 (Chula Vista, CA)

When to plant vegetables in Chula Vista, CA (USDA hardiness zone 10b). Typical last spring frost around Jan 6, 2026 21 days year to year), first fall frost around Dec 31, 202620 days).

Playing it safe? Spring frost holds off until about Feb 1, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Chula Vista, CA

January

February

October

November

December

Understand your frost dates

Frost dates for ZIP 91910: NOAA 1991-2020 normals (USW00003178 SAN DIEGO BROWN FLD, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.