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Zone 10b planting calendar

When to start vegetables in USDA hardiness zone 10b. Typical last spring frost around Jan 9, 2026 32 days year to year), first fall frost around Jan 5, 202632 days). Based on 761 ZIP codes in the zone — exact dates vary by location.

Playing it safe? Spring frost holds off until about Feb 19, 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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Month by month in zone 10b

January

February

March

September

October

November

December

Frost dates are NOAA 1991–2020 climate normals for a representative location (ZIP 90847) in zone 10b; your exact dates depend on your address. Schedules are guidance, not guarantees.