When to plant Cauliflower in Zone 8a
In Zone 8a, Cauliflower: start seeds indoors around Feb 1–Feb 15; transplant outdoors around Mar 8–Mar 22. Expect to harvest around May 17–May 31.
| Step | When |
|---|---|
| Start seeds indoors | Feb 1 – Feb 15 |
| Transplant outdoors | Mar 8 – Mar 22 |
| Harvest | May 17 – May 31 |
Tip: Fussier than broccoli — it needs cool, even conditions. Blanch heads by tying leaves over them.
Zone 8a averages a last spring frost around Mar 22 and a first fall frost around Nov 18. These are zone averages — look up your ZIP for your exact area.
See the full Zone 8a calendar in the tool →