When to plant Kale in Zone 1a
In Zone 1a, Kale: start seeds indoors around May 4–May 18; transplant outdoors around Jun 1–Jun 15; direct sow outdoors around Jun 1–Jun 29; direct sow outdoors around May 23–Jun 20. Expect to harvest around Jul 22–Aug 19.
| Step | When |
|---|---|
| Start seeds indoors | May 4 – May 18 |
| Transplant outdoors | Jun 1 – Jun 15 |
| Direct sow outdoors | Jun 1 – Jun 29 |
| Direct sow outdoors | May 23 – Jun 20 |
| Harvest | Jul 22 – Aug 19 |
| Harvest | Jul 31 – Aug 14 |
| Harvest | Jul 31 – Aug 28 |
Tip: Frost actually sweetens the leaves. Excellent for fall and overwintering in mild zones.
Zone 1a averages a last spring frost around Jun 15 and a first fall frost around Aug 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 1a calendar in the tool →