Seed-start answer
Spinach is usually direct-sown around Feb 20
This uses ZIP 98101, the Seattle frost station, and the Mar 20 last-frost estimate.
Seed starting schedule
Spinach dates for Seattle, WA
| Step | Date | How to use it |
|---|---|---|
| Direct Sow | February 20, 2026 | Sow seed outside when the crop and soil can handle the window. |