Seed-start answer
Spinach is usually direct-sown around Jan 23
In ZIP 77002, spinach is usually direct-sown around Jan 23 instead of started indoors.
Source: houston-hobby frost station, USDA zone 9b, 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 77002, the Houston frost station, and the Feb 20 last-frost estimate.
Seed starting schedule
Spinach dates for Houston, TX
| Step | Date | How to use it |
|---|---|---|
| Direct Sow | January 23, 2026 | Sow seed outside when the crop and soil can handle the window. |