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Growing Cauliflower

Jan F M A M J J A S O N Dec
  S S P                

(Best months for growing Cauliflower in USA - Zone 5a regions)

S = Plant undercover in seed trays P = Sow seed

  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 50°F and 86°F. (Show °C/cm)
  • Space plants: 24 - 39 inches apart
  • Harvest in 15-22 weeks.
  • Compatible with (can grow beside): Dwarf (bush) beans, beets, celery, cucumber, onions, marigold, nasturtium, rhubarb, aromatic herbs (sage, dill, chamomile)
  • Avoid growing close to: Climbing (pole) beans, tomato, peppers (chili, capsicum), eggplant (aubergine), strawberry, mustard

Your comments and tips

21 Jul 16, Leigh (Australia - temperate climate)
Hi Rob! I'm interested in the answer also, and I'm just up the road in Dapto :D I use neem oil to spray our lemon tree.
09 Jun 16, Margaret Thomas (Australia - temperate climate)
I grow cauliflower from plants & they take forever to form a head. The outside leaves are big green & healthy.Does it help if i tie the leaves together before a head forms?
17 Feb 17, Mike (Australia - temperate climate)
It might be a sign of high nitrogen content in your garden bed. That would explain large leaves and little main head growth. I had the same issue and started feeding with compost tea using a sprayer , had very good results after the change.
17 Jun 16, Steve (Australia - temperate climate)
Same here Margaret, if you find out please let me know.
26 Jun 16, lee (Australia - arid climate)
and me ! watching with interest on how others get get lovely big heads on their cauli's.
11 Jul 16, The Smiling Platypus (Australia - cool/mountain climate)
Hey guys, Maybe too much nitrogen?? Have you tried potash??
25 May 16, Mark (Australia - temperate climate)
Hi, I am growing cauliflower and broccoli and something keeps eating my leaves, I have tried many things but they just keep eating the leaves. Any suggestion to keep away these pest.
28 Jan 17, Chris (Australia - sub-tropical climate)
Go out at night with a torchlight,your looking for catipillars they feed at night ,they eat a lot . I went to Bunnings and bought a catipillar powder Yates vegetable dust Derris
03 Jun 16, Elizabeth (Australia - temperate climate)
I found that those beautiful yellowish butterflies, lay their eggs on the leaves and when they hatch they eat big holes in the leaves and sometimes in the actual cauliflower. I spray mine with water/dishwashing liquid.
16 May 16, Zahir Ahmed (Australia - sub-tropical climate)
where in Sydney can I buy "Purple/Yellow Cauliflower Seeds & Broccolini Seeds" ?
Showing 21 - 30 of 156 comments

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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