Pick the leaves when they are quite young. Will withstand a good deal of frost like any chrysanthemum. Also referred to as Giant Japanese or Miike Purple, this easy to grow, vigorous brassica adds piquancy to salads and is good in stir fries, quickly boiled or pickled. Plants will grow a foot tall with large slightly fringed leaves of a deep purplish red. They are quite winter-hardy and slow to bolt.
Indian mustard seems relatively unbothered by either insects or diseases.
In addition to spicing up all manner of salads, try a few leaves on a sandwich to add the mustard flavor. This is the most bolt-resistant oriental brassica that we have encountered. We harvested leaves from the three foot plants from June to October. Flavor is mild and sweet with just a touch of zesty pungency. Leaves can be used in the stead of both the heading Chinese Cabbages and the milder mustards in soups, stir-fries, with meats and sauces.