GrowZone

Seed-start answer

Start lettuce seeds indoors around Mar 11

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

Seed starting schedule

Lettuce dates for New York, NY

StepDateHow to use it
Start IndoorsMarch 11, 2026Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsMarch 25, 2026Move hardened-off seedlings outside after the frost-risk window.
Direct SowMarch 25, 2026Sow seed outside when the crop and soil can handle the window.