|Longevity: HP ( zones 4 to 10)|
In addition to the pleasant scent of the flowers the root has the valuable quality of serving as a fixative for other aromas in sachets, potpourris, and perfumery, thus preventing them from fading with the passage of time. The dried powdered root and essential oil have the fragrance of violets. It has been used to flavor syrups and is an ingredient of Ras el hanout, a spice mixture from Northern Africa. Also an ingredient of many gins. Like other members of the Iris genus this plant will spread by means of rhizomes and form attractive clumps. The flowers are large and white with an ice-blue tinge.