When to plant Cabbage in Zone 9b
In Zone 9b, Cabbage: start seeds indoors around Dec 21–Jan 4; transplant outdoors around Feb 1–Feb 15. Expect to harvest around Apr 12–Apr 26.
| Step | When |
|---|---|
| Start seeds indoors | Dec 21 – Jan 4 |
| Transplant outdoors | Feb 1 – Feb 15 |
| Harvest | Apr 12 – Apr 26 |
Tip: Start indoors and transplant while it's still cool. Steady moisture prevents split heads.
Zone 9b averages a last spring frost around Feb 15 and a first fall frost around Dec 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 9b calendar in the tool →