Growing Onion

Allium cepa : Amaryllidaceae / the onion family

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

(Best months for growing Onion in Australia - sub-tropical 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 8°C and 30°C. (Show °F/in)
  • Space plants: 5 - 10 cm apart
  • Harvest in 25-34 weeks. Allow onions to dry before storing.
  • Compatible with (can grow beside): Lemon Balm, Borage, Carrots, Beets, Silverbeet, Lettuce, Amaranth
  • Avoid growing close to: Peas, Beans

Your comments and tips

Post a comment or question Display Newest first | Oldest first, Show comments for Australia | for all countries
08 Feb 24, (USA - Zone 5a climate)
Thanks
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26 Dec 23, alfred rockhold (USA - Zone 6a climate)
i live in wv
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09 Dec 23, Gill (New Zealand - temperate climate)
How much watering do onions like. On tank water so hoping not heavy drinkers
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14 Dec 23, (New Zealand - sub-tropical climate)
Just give a watering 2-3 times a week depending on how hot it is.
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29 Nov 23, Themba Peter (South Africa - Summer rainfall climate)
I have onions that need transplanting is it the right time, will appreciate the advice.
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30 Nov 23, (South Africa - Summer rainfall climate)
You could try but it does say Feb - April.
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08 Sep 23, enie (South Africa - Summer rainfall climate)
is there onion variety that you can grow around November in south africa
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14 Sep 23, Anonymous (South Africa - Semi-arid climate)
Check the planting guide - Dec onwards.
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20 Aug 23, Michael (Australia - temperate climate)
Can you please tell me the best varieties of onion to plant now. Live at Canowindra NSW Thanking you
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06 Sep 23, Anonymous (Australia - sub-tropical climate)
Which ever variety you prefer.
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Showing 11 - 20 of 364 comments
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There are a number of reasons that could contribute to your problem with brown onions. 1. have you planted the right variety for the time of the year? Brown onion seed is normally sown in April or May. There a range of planting times for different types of onion. 2. Have you planted them too close? Onions will take some time before they 'bulb' out and may be still in the 'juvenile' stage. 3. Are they getting plenty of sun?. It is a difficult question to answer but as you have replanted seed it is not that. Trust this helps.

- Giovanni

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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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