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Planting calendar for ZIP 29812 (Barnwell, SC)

When to plant vegetables in Barnwell, SC (USDA hardiness zone 8b). Typical last spring frost around Mar 22, 2026 15 days year to year), first fall frost around Nov 9, 202610 days).

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

See the full Barnwell, SC planting calendar for dates typical of the whole city.

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Month by month in Barnwell, SC

January

February

March

April

August

September

December

Understand your frost dates

Frost dates for ZIP 29812: NOAA 1991-2020 normals (USC00380490 BARNWELL 5 ENE, SC US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.