Growing Mustard greens, also gai choy

Brassica sp. : Brassicaceae / the mustard or cabbage family

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

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

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 50°F and 95°F. (Show °C/cm)
  • Space plants: 14 - 24 inches apart
  • Harvest in 5-8 weeks.
  • Compatible with (can grow beside): Dwarf (bush) beans, beets, celery, cucumber, onions, marigold, nasturtium, rhubarb, aromatic herbs (sage, dill, camomile)
  • Avoid growing close to: Climbing (pole) beans, tomato, peppers (chilli, capsicum), eggplant (aubergine), strawberry

Your comments and tips

18 Dec 20, (South Africa - Summer rainfall climate)
Try an internet search for mustard greens eg
03 Jun 20, FELECIA L CADE (USA - Zone 5a climate)
Gai Choy able to be sowed in July for Fall harvest right? Do these leaves grow pretty big? I ordered Asian mustard from someone in the spring and believe I received the small Gai Choy.
13 Feb 20, Marlee Williams (Australia - temperate climate)
Please advise where in Adelaide SA I can buy leaf mustard (aka mustard greens) seeds. Every time I think I’ve found somewhere the seeds turnout to be the variety that you cook with not the ones I want to plant in my garden. Thank you to anyone that can help me.
02 Nov 21, Eadie (Australia - temperate climate)
Buy on line from Diggers Club ~ BTW proper name 'Brassica Juncea' may help when searching. Self seed readily, deep rooting, ornamental, bees love them.I mix the leaves in when cooking silverbeet, spinach, any of the 'wild greens' mixes I pick. Fab on going addition to the garden.
30 Mar 20, LK (Australia - temperate climate)
I bought mine from the Asian grocer Kim Wang in Chinatown. Hope this helps!
29 Mar 20, Peter Turner (Australia - sub-tropical climate)
Try your local Chinese/ Asian food shops. I buy all of my Asian Greens seeds from there and they are super cheap.
14 Feb 20, anon (Australia - sub-tropical climate)
You could try seed selling companies on the internet. BOONDIE SEEDS - put mustard greens in the search box.
14 Feb 20, Ali (Australia - cool/mountain climate)
I just had a look at my favourite seed supplier. They do have a table green mustard list of plants, but there is also this one under the Green manure section that is also mustard greens mix. I've tagged the page it's on so you can have a look at all the green manure seeds they have.
03 Jun 19, Jen (Australia - cool/mountain climate)
the mustards are for every month.. in the cool climate areas do they need frost protection?? Thanks Jen
28 Dec 18, Christine Morrison (Australia - cool/mountain climate)
Where can I buy Mustard lettuce seeds in Australia?
Showing 11 - 20 of 57 comments

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