Growing Onion

Allium cepa : Amaryllidaceae / the onion family

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

(Best months for growing Onion in South Africa - Summer rainfall 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 46°F and 86°F. (Show °C/cm)
  • Space plants: 2 - 4 inches 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

04 Mar 24, Mary (USA - Zone 8a climate)
Do onion sets do well in a container?
07 Feb 24, Brenda (USA - Zone 5a climate)
What do you mean when you say plant out
12 Aug 24, Vicki (USA - Zone 8a climate)
Plant out means to plant your transplants out into the garden.
07 Feb 24, (USA - Zone 5a climate)
Hi, it means to take the seedlings you've grown from seed, and plant them in the ground or bigger pots.
08 Feb 24, (USA - Zone 5a climate)
Thanks
26 Dec 23, alfred rockhold (USA - Zone 6a climate)
i live in wv
09 Dec 23, Gill (New Zealand - temperate climate)
How much watering do onions like. On tank water so hoping not heavy drinkers
14 Dec 23, (New Zealand - sub-tropical climate)
Just give a watering 2-3 times a week depending on how hot it is.
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.
30 Nov 23, (South Africa - Summer rainfall climate)
You could try but it does say Feb - April.
Showing 11 - 20 of 368 comments

Check the planting guide - Dec onwards.

- Anonymous

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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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