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
P P P P P P P P P P P P

(Best months for growing Mustard greens in New Zealand - cool/mountain regions)

  • 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 10°C and 35°C. (Show °F/in)
  • Space plants: 35 - 60 cm 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

06 Aug 12, hz (Australia - cool/mountain climate)
I did this twenty years ago with giant red mustard. I always let a few plants on the edges go to seed, and strew the seed. I still have volunteer red mustard, and so can add some young leaves into a salad if I wish, but also benefit from the chemicals it produces when dug in to the soil to deter nematodes. Dig it in whenever you are ready by the way !
17 Mar 12, Dee (Australia - temperate climate)
Started growing some years ago and they now come up all over the vegetable garden. But why is it suggested that it not be grown with some other vegetables?
15 Jun 11, Jen (Australia - sub-tropical climate)
Eden seeds also have these seeds -
29 Aug 10, Mike Chard (Australia - sub-tropical climate)
The Reject Shop sells seeds - I bought Mustard Greens seeds for only a couple of dollars and they grew fantastic!
11 Apr 10, tony russell (Australia - temperate climate)
I would like to try growing some cof this but can't find any seeds or plants. Where can I get some ?
05 Aug 10, andeaus (Australia - temperate climate)
eden seeds. mail order or good health food store. if you're in sydney i've got plenty.
25 Jul 10, darryl (Australia - cool/mountain climate)
hey man try ebay.. they got all sorts of seeds.
27 Mar 10, wendy (Australia - temperate climate)
where can you grow them in what soil
28 Feb 10, Caroline (Australia - temperate climate)
I have been looking for mustard greens seed and I can't find them in the traditional gardening stores, where can I find them?
03 Jun 11, Jackie (Australia - temperate climate)
Any supermarket in the spice section will do.
Showing 41 - 50 of 57 comments

Ask a question or post a comment or advice about Mustard greens

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put GardenGrow in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use GardenGrow and subscribe to the free GardenGrow planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About GardenGrow | Contact us | Privacy Policy

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. GardenGrow 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.
We cannot help if you are overrun by giant slugs.