Rosmarinus offi cinalis (Rosemary) is a common household plant which belongs to the family Lamiaceae and is grown in many parts of the world. It is a woody, perennial herb with fragrant, evergreen, needle-like leaves and white, pink, purple or blue fl owers. The two most commonly grown hardy Rosemaries are Rosmarinus offi cinalis ‘Arp’ and R. offi cinalis ‘Madelene Hill’ (syn. ‘Hill Hardy’). The other cultivars of the plant are R. offi cinalis ‘Albus’, R. offi cinalis ‘Bendenen Blue’, R. offi cinalis ‘Goodwin Creek’, R. offi cinalis ‘Herb Cottage’, R. offi cinalis ‘Logee’s Light Blue’, R. offi cinalis ‘Miss Jessup’s Upright’, R. offi cinalis ‘Russian River’, R. offi cinalis ‘Salem’. The chemical constituents include bitter principle, resin, tannic acid, volatile oils and fl avonoids. The volatile oil consists of borneol, bornyl acetate, camphene, cineol, pinene and camphor. It is used for problems involved in central nervous system, cardio vascular system, genito urinary conditions, liver treatments, reproductive system and respiratory system. The volatile oil of the plant is used in oils and lotions for the treatment of various ailments like arthritis, gout, muscular pain, neuralgia, wound and rubbed into hair for stimulating the hair bulbs to renewed activity, to prevent premature baldness.