Armoracia rusticana - Hardy perennial root vegetable. Full sun to part shade. 80-1oo cms height, 85 cms width. Used by the ancient Egyptians, Greeks and Romans, highly valued by them as a medicinal and edible herb. Large edible taproot and leaves also edible. White flowers in spring and summer. Frost hardy. Prefers to grow in a deep rich moist, well drained soil. A medicinal herb, used internally and externally. Will grow in coastal gardens. A good companion to potatoes and apple trees. A medicinal plant for animals also, and a good warming winter feed for them.