GrowZone

Seed-start answer

Spinach is usually direct-sown around Mar 11

This uses ZIP 10001, the New York frost station, and the Apr 8 last-frost estimate.

Seed starting schedule

Spinach dates for New York, NY

StepDateHow to use it
Direct SowMarch 11, 2026Sow seed outside when the crop and soil can handle the window.