Lavandula angustifolia

Lavandula angustifolia (also Lavandula spica or Lavandula vera; Common Lavender, True lavender, or inaccurately, "English" Lavender; 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. It is not native to England despite being commonly called 'English lavender' in some regions.

It is a strongly aromatic shrub growing to 1-2 m tall. The leaves are evergreen, 2-6 cm long and 4-6 mm broad. The flowers are pinkish-purple (lavender-coloured), produced on spikes 2-8 cm long at the top of slender leafless stems 10-30 cm long.

Cultivation
It is commonly grown as an ornamental plant. It is popular for its colourful flowers, its fragrance and its ability to survive with low water consumption. It does not grow well in continuously damp soil. It is fairly cold hardy, generally considered hardy to USDA zone 5.

Use
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.