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San Diego, TX planting calendar

When to plant vegetables in San Diego, TX (USDA hardiness zone 9b). Typical last spring frost around Feb 20, 2026 21 days year to year), first fall frost around Dec 1, 202620 days).

Playing it safe? Spring frost holds off until about Mar 18, 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:

Or get a printable San Diego calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before San Diego, TX’s first frost (~Dec 1, 2026) — fastest first.

Month by month in San Diego, TX

January

February

March

April

September

November

December

Understand your frost dates

More Texas planting calendars

ZIP codes in San Diego

78384

Frost dates are NOAA 1991–2020 climate normals for a representative location in San Diego, TX (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.