GrowZone

Seed-start answer

Cilantro is usually direct-sown around Mar 22

This uses ZIP 74103, the Tulsa frost station, and the Apr 5 last-frost estimate.

Seed starting schedule

Cilantro dates for Tulsa, OK

StepDateHow to use it
Direct SowMarch 22, 2026Sow seed outside when the crop and soil can handle the window.