When to plant Cauliflower in Zone 12a
In Zone 12a, Cauliflower: start seeds indoors around Nov 13–Nov 27; transplant outdoors around Dec 18–Jan 1. Expect to harvest around Feb 26–Mar 12.
| Step | When |
|---|---|
| Start seeds indoors | Nov 13 – Nov 27 |
| Transplant outdoors | Dec 18 – Jan 1 |
| Harvest | Feb 26 – Mar 12 |
Tip: Fussier than broccoli — it needs cool, even conditions. Blanch heads by tying leaves over them.
Zone 12a averages a last spring frost around Jan 1 and a first fall frost around Dec 31. These are zone averages — look up your ZIP for your exact area.
See the full Zone 12a calendar in the tool →