This perennial herb, native to the Mediterranean, reaches about three feet high and produces one of the most recognizable scents in the world. Evidence of its use traces back to ancient Egypt, Greece, and Asia. Today it is a common ingredient for everything from tea, gum, and toothpaste to lotions, bath salts, and candles. For Aromatherapy Add to your diffuser Create custom potpourri, sachet or soaps. Add to a terra cotta perfume ring for a refreshing aroma around the house.