Brassica vegetables, such as broccoli and turnips ... and kohlrabi directly in the soil from April to August. Sow the seeds about 6 inches apart, and thin out as they germinate and grow.

All brassica crops grow best in partial shade ... planted in a seedbed or in modules under glass and then transferred. Seeds should be sown thinly, as this reduces the amount of future thinning ...

In brassica crops grown for seed, the possibility of cross-pollination with crop ... Bright yellow flowers form at the ends of the branched stems, and flowers later form pods. The formation of pods is ...

It forms large seed pods like wild turnip, though in wild radish ... Herbicides used selectively in brassica crops are obviously not going to be effective, such as trifluralin, aminopyralid (T-Max), ...