Growing Broccoli

Brassica sp. : Brassicaceae / the mustard or cabbage family

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

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

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Easy to grow. 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 45°F and 86°F. (Show °C/cm)
  • Space plants: 14 - 20 inches apart
  • Harvest in 10-16 weeks. Cut flowerhead off with a knife..
  • Compatible with (can grow beside): Dwarf (bush) beans, beets, celery, cucumber, onions, marigold, nasturtium, rhubarb, aromatic herbs (sage, dill, chamomile, oregano)
  • Avoid growing close to: Climbing (pole) beans, tomato, peppers (chilli, capsicum), eggplant (aubergine), strawberry, mustard

Your comments and tips

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14 Nov 17, Larry Krieg (Australia - temperate climate)
Try looking up White blister (Albugo candida). I get this is my broccoli at times and it may be what you are observing. There are pictures on the website www.agric.wa.gov.au/broccoli/diseases-vegetable-brassicas?page=0%2C1 Cheers Larry
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09 Nov 17, Clare Stockdale (Australia - temperate climate)
Once flowers have formed, can the plant be productive or should I throw it out? This is broccoli I'm talking about.
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10 Nov 17, Mike (Australia - sub-tropical climate)
Once broccoli has flowered it has gone too far.
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21 Oct 17, marie (Australia - temperate climate)
I'm new at gardening in Sydney Australia.(I'm originally from Canada) Am I in the temperate zone? when is it best to grow cauliflower, broccoli, and Brussel sprouts. our broccoli heads are separating. the cauliflower is yellow and completely separated. And no sign of sprouts growing as of yet
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23 Oct 17, Mike (Australia - sub-tropical climate)
Broc and cauli plant seeds April May and transplant seedlings May June. Not cold enough for Brussel Sprouts in Sydney Read the notes here for all 3 crops..
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23 Oct 17, Mike (Australia - sub-tropical climate)
You are in sub tropical by the climate zone here. If you live in a coldish part of Sydney you would be temperate. The best is probably to have the crop mature by July August.
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05 Oct 17, Saints (Australia - tropical climate)
I want t grow broccolli between latitude 12south and 10 south and five miles from northeaat auatralia coastal line. please advise
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06 Oct 17, Mike (Australia - tropical climate)
Go to Vegetables and Herbs above and read about growing it in the TROPICS. Sounds like to live at the top end of Australia. Good luck.
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30 Aug 17, stella jackon (Australia - sub-tropical climate)
where would be the best town or city in Australia to grow broccoli
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31 Aug 17, Mike (Australia - sub-tropical climate)
How long is a piece of string? Anywhere - it is a cool weather season crop. Plant from April onwards. Really hot places it would dry out if not watered a lot. Read up about growing it.
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Showing 91 - 100 of 313 comments
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I am a farmer from Papua New Guinea at an altitude of 1000 m above sea level. I am trying to produce Broccoli in my farm and wonder is it going to be like growing Broccoli at Australia -Tropical, or do I have to do my own trials. Thank you

- Lawrence Umba

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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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