DibbleWhen to plant Cauliflower
Start indoors 6 weeks before last frost; transplant 2 weeks before. Steady moisture and cool weather make tight white heads.
When to plant Cauliflower by zone
| Zone | Start seeds indoors | Sow or transplant | Harvest |
|---|---|---|---|
| Zone 3 | April 3 | May 1 | July 10 |
| Zone 4 | March 29 | April 26 | July 5 |
| Zone 5 | March 19 | April 16 | June 25 |
| Zone 6 | March 10 | April 7 | June 16 |
| Zone 7 | February 27 | March 27 | June 5 |
| Zone 8 | February 14 | March 14 | May 23 |
| Zone 9 | January 18 | February 15 | April 26 |
| Zone 10 | December 20 | January 17 | March 28 |
| Zone 11 | November 20 | December 18 | February 26 |
These dates use typical frost dates for each zone. Dibble tunes them to your exact ZIP and lets you adjust frost dates for your own yard.
Companion plants
Good neighbors for Cauliflower:
Better kept apart:
Family and rotation
Cauliflower is in the brassicas family. Hungry leaf crops. Follow legumes; avoid following other brassicas. Learn about crop rotation.
Related crops
Kale
When to plantBroccoli
When to plantRadish
When to plantCabbage
When to plantBrussels Sprouts
When to plantTurnip
When to plantQuestions
When should I plant cauliflower?
It depends on your zone. Cauliflower is a half-hardy crop, so the timing follows your last spring frost. Look up your zone in the table below for exact start, sow, and harvest dates, or open Dibble and enter your ZIP to get your own calendar.
How long does cauliflower take to grow?
About 70 days from transplant to the first harvest, with a picking window of roughly 14 days after that.
What grows well with cauliflower?
Good companions include Onion, Beet, Celery. Keep it away from Tomato, Strawberry.
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.