Florida Broadleaf actually hails from the Himalayans of northern India and found it’s way into the American South as early as the late 1800’s. Indian mustards are usually theB. juncea species and develop a hot pungency when the leaves are mature and especially if grown during high temperatures. Early, young leaves are ideal in salads. Later, cooking tempers the heat.
Mustard is quick growing crop. The leaves or whole plants can be harvested often in less than 40 days. Sow for early spring greens at the last frost date, late April and into mid summer. Mustard should be irrigated during summer growth. Late summer plantings will flourish during cool fall into early winter.
Sow the seed in a row 20 seeds to the inch and use the thinning in a salad allowing the other plants to have more room to grow. Seed should be covered by 1/4 inch of soil.
Mustard hotness is variety to variety and cooking will temper the heat.
Mustard seed is easy enough to save. It is not easy to determine species and so to prevent crossing one should grow one variety to save pure seed. Some varieties will bolt into seed the first year, otherswill have to undergo a winter vernalization to bloom. The plump seed pods should be allowed to turn brown in the field although you can pull the plants if the pods begin to shatter or if birds begin to remove the seeds. move them onto a tarp and allow the tops to dry down.