When to plant cauliflower in zone 6
In USDA zone 6, the last spring frost usually falls between Apr 5 and Apr 30. Start cauliflower indoors around Feb 15 to Mar 23. Plant them out around Apr 10 to May 11. Expect to harvest around May 29 to Jul 14.
Zone 6 dates for cauliflower
| Start seeds indoors | Feb 15 to Mar 23 |
|---|---|
| Plant outside | Apr 10 to May 11 |
| Harvest | May 29 to Jul 14 |
| Typical last spring frost | Apr 5 to Apr 30 |
| Typical first fall frost | around Oct 15 |
USDA zones measure winter cold, not frost dates, so these are typical dates for the zone. Towns in the same zone can be weeks apart.
Get dates for cauliflower in your exact town, not just your zone.
Get my dates free →How to grow cauliflower
The fussy but rewarding brassica. Read the full cauliflower growing guide: spacing, sun and soil, step-by-step care, problems and the best varieties.