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Alhambra, CA planting calendar

When to plant vegetables in Alhambra, CA (USDA hardiness zone 10b). Typical last spring frost around Jan 4, 2026 16 days year to year), first fall frost around Jan 2, 202615 days).

Playing it safe? Spring frost holds off until about Jan 24, 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 Alhambra, CA

January

February

October

November

December

Understand your frost dates

Frost dates are NOAA 1991–2020 climate normals for a representative location in Alhambra, CA (covering 3 ZIPs); your exact dates depend on your address. Schedules are guidance, not guarantees.