Seed-start answer
Radishes is usually direct-sown around Apr 7
This uses ZIP 80012, the Denver frost station, and the May 5 last-frost estimate.
Seed starting schedule
Radishes dates for Aurora, CO
| Step | Date | How to use it |
|---|---|---|
| Direct Sow | April 7, 2026 | Sow seed outside when the crop and soil can handle the window. |