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Zone 8b planting calendar

When to start vegetables in USDA hardiness zone 8b. Typical last spring frost around Mar 16, 2026 (±15 days year to year), first fall frost around Nov 14, 2026 (±13 days). Based on 3,382 ZIP codes in the zone — exact dates vary by location.

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

Zone 8b covers a lot of ground. Enter your ZIP for frost dates from your nearest weather station and a month-by-month calendar:

Month by month in zone 8b

January

February

March

April

September

December

Exact indoor-sow, transplant, and direct-sow windows for zone 8b’s most-planted vegetables.

Where these dates come from

Frost dates for zone 8bare NOAA 1991–2020 climate normals from a representative location (Kemp, TX). A hardiness zone spans thousands of miles, so no single station speaks for all of it. The guide to zones and frost dates covers what that means for your timing.

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