Lavandula angustifolia (also Lavandula spica or Lavandula vera; common lavender, true lavender, narrow-leaved lavender or English lavender (though not native to England); formerly L. officinalis) is a flowering plant in the family Lamiaceae, native to the western Mediterranean region, primarily in the Pyrenees and other mountains in northern Spain.
Uses
In addition to its use as an ornamental plant, the flowers and leaves are also used as an herbal medicine, either in the form of lavender oil or as an herbal tea. The flowers are also used as a culinary herb, most often as part of the French herb blend called herbes de Provence.
Lavender essential oil, when diluted with a carrier oil, is commonly used as a relaxant with massage therapy. Products for home use including lotions, eye pillows—including lavender flowers or the essential oil itself—bath oils, etc. are also used to induce relaxation. Both the petals and the oil are the most popular ingredients in handmade soap.
Dried lavender flowers and lavender essential oil are also used as a prevention against clothing moths, which do not like their scent.
(en.wikipedia.com)