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Growing Mustard greens, also gai choy

(Brassica sp.)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    S P P     P        

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

S = Plant undercover in seed trays. P = Plant direct in garden where they are to grow.


  • 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: Dwarf (bush) beans, beets, celery, cucumber, onions, marigold, nasturtium, rhubarb, aromatic herbs (sage, dill, camomile)
  • Avoid growing with: Climbing (pole) beans, tomato, peppers (chilli, capsicum), eggplant (aubergine), strawberry
  • Leaf mustard
  • Red Japanese mustard

Green leafy plant, popular for Asian cooking.

Grow fast with plenty of water and regular feeds of liquid manure to avoid bitterness. Pick young.

Culinary hints - cooking and eating Mustard greens

Use young leaves in salad for a 'spicy kick'. Add to stir fry.


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This Autumn and Winter I scattered mustard seeds around the place - a biodynamic book said to do that. When I'm weeding I see a nice mustard green I just eat it on the spot. Leave some patches to grow bigger and eat them chopped up in your dal/lentils - stem & all. Keep sowing them all the year.

- Trevor Heywood


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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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