A Concrete of lavandin is produced by solvent extraction of the flowering tops of the Lavandin shrub, see Lavandin Oil. The solvent is recovered under vacuum but it is not unusual that trace amounts of solvent are perceptible in the odor of the commercial concrete. As the lavandin plant is cultivated almost exclusively in the south of France, the Concrete of Lavandin is produced in nearby extraction installations belonging to a number of perfume houses. Very small quantities of lavandin concrete are produced in Morocco, Spain, Hungary and Yugoslavia, mainly for local use.