GrowZone

Seed-start answer

Carrots is usually direct-sown around Jan 15

This uses ZIP 85001, the Phoenix frost station, and the Feb 5 last-frost estimate.

Seed starting schedule

Carrots dates for Phoenix, AZ

StepDateHow to use it
Direct SowJanuary 15, 2026Sow seed outside when the crop and soil can handle the window.