Growing Cauliflower

brassica oleracea var. botrytus botrytus : Brassicaceae / the mustard or cabbage family

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

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

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • 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 10°C and 30°C. (Show °F/in)
  • Space plants: 60 - 100 cm 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

17 Oct 09, shell (Australia - temperate climate)
Im in Melb. I havested my cauliflower today. Very proud. they were perfect. Had a virgin vegie pathc and not everything has been such a success? Some of my crop has gone to flower, and some things just didnt yeild much or produce tiny vegies, ie: beetroot. Whereas the radishes were woody and giant? still learning. Love reading this site from fellow farmers. ha
16 Oct 09, Evelyn (Australia - cool/mountain climate)
Same problem as blinky and tina -not a sign of heads never had it happen before -cabbages have done well alongside
06 Oct 09, Blinky and Tina (Australia - sub-tropical climate)
We are growing Cauliflower and it has really good leaves on it. We planted about june this year. it's now october and we still dont have any heads forming? Can anyone explaine why? Also when shuld the heads start to appear? According to our seed packet we planted at the right time.
09 May 10, Lucy (Australia - cool/mountain climate)
I thought I had the same problem. The plants were large but no cauliflowers. I thought maybe the catapillars that ravaged them as babies had eaten their buds or something. However, 5 months later I have flowers on almost all of them and have eaten so much I'm pretty much sick of them. I'd say leave the plants in, keep watering them and see if they develop into flowers in a few months time.
09 May 10, Doug (Australia - cool/mountain climate)
Have you tried slicing cauli's thinly, toss in a little olive oil and salt, and roast until quite brown and shrivelled? I _never_ get tired of eating them that way - delicious!
02 Oct 09, John Barry (Australia - temperate climate)
Cauliflowers are NOT easy to grow, repeat NOT easy. Farmer John
14 Jul 09, Kathryn (Australia - sub-tropical climate)
Same as 12 - my cauliflower has a pinky/purple colour - can I eat this?
12 Jul 09, David Smith (Australia - cool/mountain climate)
My cauliflowers have grown well but the heads hve turned from white to yellow how does one keep them white or ie it the varity, i have put a leaf over each plant but they still go yellow have you got any ideas is it a soil deficiency the soil i well manured.
04 May 09, Dawn (Australia - temperate climate)
Marty : The slugs (if green) are from the white Cabbage moth laying eggs that hatch into catapillars. Place large pieces of egg shell around the base and on the leaves and the moth will think it's another moth already laying eggs.
01 Feb 09, Marty (Australia - cool/mountain climate)
I had a great crop of large caulis in November. Trouble was they were completely full of slugs - they seemed to be breeding in amongst the florets and were hard to remove. How do i prevent this next time?
Showing 171 - 180 of 204 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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