Seed-start answer
Start kale seeds indoors around Apr 5
This uses ZIP 53202, the Milwaukee frost station, and the May 10 last-frost estimate.
Seed starting schedule
Kale dates for Milwaukee, WI
| Step | Date | How to use it |
|---|---|---|
| Start Indoors | April 5, 2026 | Start seeds under lights or in a bright indoor seed-starting space. |
| Transplant Outdoors | April 26, 2026 | Move hardened-off seedlings outside after the frost-risk window. |
| Direct Sow | April 19, 2026 | Sow seed outside when the crop and soil can handle the window. |