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 T T          

(Best months for growing Cauliflower in Australia - tropical regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • 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

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" ?
04 Jun 16, Samantha (Australia - temperate climate)
BROCCOLINI - Zahir Ahmed - Not sure about 'seeds' as such but u can buy Purple/Yellow Broccoli/Broccolini,etc... at Bunnings Warehouse. Hope that helps?
01 Jun 16, Peta (Australia - tropical climate)
I buy all my organic certified seeds from Eden seeds they say on their site if they can't deliver certain things to places but I have purchased all different types of heirloom seeds and all have so far sprouted. They're also cheaper than buying the seeds from Bunnings up here
31 Mar 16, James L (Australia - temperate climate)
Hey guys, the answer is no, another cauliflower head will not grow once you cut off the main one.
07 Feb 16, Brett Davey (Australia - sub-tropical climate)
Once you harvest, discard the remainder of the plant as it only produces one cauliflower
04 Oct 15, Candy (Australia - sub-tropical climate)
Hi, this was my first attempt at growing broccoli & cauliflower from seedlings. Pretty sure I planted them mid winter. While they look as though they are flourishing, with lots of healthy big leaves - still none have produced heads! They were planted in the same garden bed as I had previously grown tomatoes, with plenty of compost & regular fertiliser added. Any idea's why? Is it possible they still might produce, this far into spring?? Thanks
06 Oct 15, David (Australia - temperate climate)
Hello there, I live in Victoria in a temperate area, but have had a bit of experience growing broccoli especially and some cauliflower. Be careful which seedlings you buy, because if you buy 'green sprouting broccoli' it doesn't have a very big head, or floret. I use a Green Emperor Variety which has a much bigger head. I bought some seeds from bunnings and I think there was sixty seeds in the pack. Hope that helps a bit with your question. Thanks David
Showing 61 - 70 of 162 comments

Ask a question or post a comment or advice about Cauliflower

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.