Almost any good soil will produce a crop of mustard. The basal leaves
of mustard are used for greens, and as the plants require but a short
time to reach the proper stage for use frequent sowings should be made.
Sow the seeds thickly in drills as early as possible in the spring,
or for late use sow the seeds in September or October. The forms of
white mustard, of which the leaves are often curled and frilled, are
generally used. Mustard greens are cooked like spinach.--(F. B. 255;
Mich. E. S. 20; La. E. S. 90.)