GrowZone

Crop by USDA zone

When to plant tomatoes in zone 8b

In USDA zone 8b, plant tomatoes around Mar 19, after the representative last frost near Mar 12. Start seeds indoors around Jan 29.

This page summarizes the supported ZIPs in zone 8b. Your exact city can move earlier or later, so use the ZIP lookup for the frost-station-specific answer.

Get exact tomatoes dates by ZIP code.

Seed starting schedule

Tomatoes dates for Fort Worth, TX

StepDateHow to use it
Start IndoorsJanuary 29, 2026Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsMarch 19, 2026Move hardened-off seedlings outside after the frost-risk window.