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Planting calendar for ZIP 93453 (Santa Margarita, CA)

When to plant vegetables in Santa Margarita, CA (USDA hardiness zone 8b). Typical last spring frost around Feb 4, 2026 37 days year to year), first fall frost around Dec 4, 202617 days).

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

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

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Month by month in Santa Margarita, CA

January

February

March

April

September

October

December

Understand your frost dates

Frost dates for ZIP 93453: NOAA 1991-2020 normals (USC00049111 TWITCHELL DAM, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.