The genus Thymus consists of about 350 species of perennial, aromatic herbs and subshrubs native to Europe and North Africa. Various types of thyme are used all over the globe as condiments, ornamentals and sources of essential oil. Thyme oil (distilled from its leaves) is among the worlds top ten essential oils, displaying antibacterial, antimycotic, antioxidative, food preservative and mammalian age-delaying properties. Because of the wide variety of its applications, the demand for thyme oil is growing; hence thyme commands an important place in an expanding world market. Commercial supply of thyme originates mainly from European countries, but recently this increased demand has lead to new winter-hardy, high yield cultivars being developed for commercial cultivation in Canada and North America.