This section is from the book "Manual Of Gardening", by L. H. Bailey. Also available from Amazon: Manual of Gardening.
The plant is grown for the buttons or sprouts (miniature cabbage heads) that grow thickly along the stem (Fig. 298).
It should be more generally known, as it is one of the choicest of the cabbage family, and may be had at its best after the season for cauliflower has passed. It is the better for being touched by the fall frosts. The buttons should be cut off rather than broken. The very small hard "sprouts" or buttons are the best. The culture is essentially the same aa for late cabbage or broccoli. One ounce will sow 100 feet 'of drill, or make upward of 2000 plants. Set plants in field 2 to 3 feet apart, or dwarf varieties closer. They require the entire season in which to grow.
 
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