GrowZone

Crop by USDA zone

When to plant lettuce in zone 11a

In USDA zone 11a, plant lettuce around Dec 18, after the representative last frost near Jan 1. Start seeds indoors around Dec 4.

This page summarizes the supported ZIPs in zone 11a. Your exact city can move earlier or later, so use the ZIP lookup for the frost-station-specific answer.

Get exact lettuce dates by ZIP code.

Seed starting schedule

Lettuce dates for Miami, FL

StepDateHow to use it
Start IndoorsDecember 4, 2025Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsDecember 18, 2025Move hardened-off seedlings outside after the frost-risk window.
Direct SowDecember 18, 2025Sow seed outside when the crop and soil can handle the window.
Miami, FL · Zone 11a Lettuce Dec 18 Open ZIP-specific answer · last frost Jan 1