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Planting calendar for ZIP 93407 (San Luis Obispo, CA)

When to plant vegetables in San Luis Obispo, CA (USDA hardiness zone 9b). Typical last spring frost around Jan 16, 2026 30 days year to year), first fall frost around Dec 25, 202631 days).

Playing it safe? Spring frost holds off until about Feb 23, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full San Luis Obispo, CA planting calendar for dates typical of the whole city.

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Month by month in San Luis Obispo, CA

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 93407: NOAA 1991-2020 normals (USC00047851 SAN LUIS OBISPO POLY, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.