Gardening Plant Encyclopedia Herbs Horseradish By Viveka Neveln Viveka Neveln Instagram Viveka Neveln is the Garden Editor at BHG and a degreed horticulturist with broad gardening expertise earned over 3+ decades of practice and study. She has more than 20 years of experience writing and editing for both print and digital media. Learn about BHG's Editorial Process Updated on February 1, 2017 Share Tweet Pin Email Horseradish is a large perennial herb with coarse leaves and small white flowers. The large taproots are harvested to make the pungent relishes and sauces for which the plant is known. Root cuttings or divisions planted in spring will produce harvestable roots in 180-240 days. The plant can become invasive, so plant it with caution, or keep it contained to prevent it from spreading too far. Horseradish Overview Genus Name Armoracia rusticana Common Name Horseradish Plant Type Herb Light Sun Height 1 to 3 feet Width 24 to 36 inches Special Features Low Maintenance Zones 3, 4, 5, 6, 7, 8, 9 Propagation Division Varieties of Horseradish Variegated horseradish Armoracia rusticana 'Variegata' is similar to the species, except leaves have large splotches of white, making the plant slightly more ornamental. The growth requirements and harvest qualities are the same. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit