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Planting calendar for ZIP 78380 (Robstown, TX)

When to plant vegetables in Robstown, TX (USDA hardiness zone 9b). Typical last spring frost around Jan 26, 2026 29 days year to year), first fall frost around Dec 24, 202626 days).

Playing it safe? Spring frost holds off until about Mar 4, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Robstown, TX planting calendar for dates typical of the whole city.

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Month by month in Robstown, TX

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 78380: NOAA 1991-2020 normals (USC00417677 ROBSTOWN, TX US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.