Source: Magness et al. 1971
Horse-radish is a root crop, grown for the very pungent roots, which contain an oil with a strong pungent odor and hot, biting taste. The plant attains a height of 2 to 3 feet when in flower. It is propagated by planting pieces of side roots, which are taken from the main root when the latter is harvested. The top of the plant consists of a rosette of large leaves, and a flower stalk; it rarely produces seeds. The roots develop entirely underground.
Production in U.S.: 2,717 acres in 1959 census. About 6,000 tons.
Use: As a condiment.
Part consumed: Roots only.