GrowZone

Seed-start answer

Start kale seeds indoors around Dec 28

In ZIP 33602, start kale seeds indoors around Dec 28, about 35 days before the Feb 1 last-frost estimate.

Source: tampa-intl frost station, USDA zone 10a, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

This uses ZIP 33602, the Tampa frost station, and the Feb 1 last-frost estimate.

Seed starting schedule

Kale dates for Tampa, FL

StepDateHow to use it
Start IndoorsDecember 28, 2025Start seeds under lights or in a bright indoor seed-starting space.
Transplant OutdoorsJanuary 18, 2026Move hardened-off seedlings outside after the frost-risk window.
Direct SowJanuary 11, 2026Sow seed outside when the crop and soil can handle the window.