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Planting calendar for ZIP 92840 (Garden Grove, CA)

When to plant vegetables in Garden Grove, CA (USDA hardiness zone 10b). Typical last spring frost around Jan 5, 2026 (±20 days year to year), first fall frost around Dec 25, 2026 (±19 days).

Playing it safe? Spring frost holds off until about Jan 30, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Garden Grove, CA planting calendar for dates typical of the whole city.

Turn these dates into a plan: lay out your beds, place each crop on its sow and transplant dates, and get a reminder when it’s time. Free on one garden, no credit card.

Plan my garden for 92840

Month by month in Garden Grove, CA

January

February

October

November

December

Understand your frost dates

Where these dates come from

Frost dates for ZIP 92840 come from NOAA 1991-2020 normals (USC00049087 TUSTIN IRVINE RCH, CA US). You can look up that station’s record yourself.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.