Vegetable Description: Technically a species of sorghum, broom corn has been used for making brooms since the Dark Ages. Historians record that Benjamin Franklin first brought this unusual plant to the United States in the early 1700s. Though various states produced great amounts of this plant for centuries, production has now nearly ceased because of the high amount of labor required for this crop. Vegetable Botanical Name: Sorghum bicolor Other Common Names: Vegetable Duration: Annual Vegetable Days to Maturity: 110 Days Vegetable Seeds Per Oz: 150 Vegetable Height: 60 in to 120 in Vegetable Spacing: - Vegetable Planting: Direct sow outside after danger of last frost. Plant about 4? apart and 1? below soil surface. Rows should be spaced at 30?-36? apart.-