In some market areas and in selected health food stores, distributors often represent a confusion between the sorghums referred to as millets and other related millets. Grain sorghum can grow 15 feet high. However, most sorghums we know in the U.S. grow only 2 to 3 feet high, permitting harvesting with standard grain harvesters. With nearly 95 percent of the nutritive value of corn, the seeds of grain sorghum are nutritionally valuable for all classes of livestock and poultry. Grain sorghums are excellent for forage.
Farmers often feed the grain to livestock or make the entire plant into silage.
These include sudan grass and tunis grass and are used for pasture and forage. They are annuals and grow quickly. They are generally used for summer pasture. Johnson grass, a perennial grass sorghum, is considered a pest when out of control, but makes an excellent hay and cattle feed. Broom Corn Sorghum.