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Planting calendar for ZIP 78536 (Delmita, TX)

When to plant vegetables in Delmita, TX (USDA hardiness zone 9b). Typical last spring frost around Jan 31, 2026 25 days year to year), first fall frost around Dec 17, 202623 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 Delmita, TX planting calendar for dates typical of the whole city.

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Month by month in Delmita, TX

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 78536: NOAA 1991-2020 normals (USC00417622 RIO GRANDE CITY, TX US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.