Horseradish is a plant that belongs to the Brassicaceae family, which also includes mustard and wasabi. It is grown for its long white or pale pink root, which has a strong, pungent flavor when grated. The word "horseradish" comes from the Old English words "hors" meaning "great," and "rastr" meaning "root."
The plant itself grows up to 2 feet tall and is characterized by its large, glossy leaves. It prefers fertile soil that is moist but well-drained, and can be grown in a pot or garden bed. The root of the horseradish plant is harvested in the fall after the first frost, as it becomes sweeter and more pungent at this time.
Horseradish is commonly used as a condiment, sauce, or dressing, and can be added to foods such as meat dishes, soups, and salads for extra flavor. It is also used in cocktails and mixed drinks, and has medicinal properties that are believed to help with respiratory issues and sinus congestion.