Lavender

Lip-shaped lavender belongs to a small, perennal aromatic shrub. It is mainly used as spice for lavender oil extracted from flower sequence. Plant height of 30 to 60 cm, multi-branch, root system developed, leaf-to-life, pale gray-green, narrow, curly edges. Spike flower sequence, flower lilac to deep purple, each round has a small flower 10 to 14 flowers, in the sliver of the seams have small glands. Lavender plants are native to the Mediterranean Sea. The lavender used in cultivation is mainly a hybrid of this species and another wide-leaf lavender.

the use of lavender in ancient Rome. Lavender was first cultivated in the south of France at the end of the 16th century. After the 19th century, Britain, the United States, the Soviet Union, Australia, Bulgaria, Italy, the Netherlands and Japan began to plant. The current world's major producers are France, the Soviet Union, Bulgaria, Italy and Hungary. China introduced lavender in 1952. The main production areas are in Shaanxi, Xinjiang Yili region and Shanghai.

lavender needs plenty of sunshine, warm and humid in winter, hot and watery in summer, suitable for loam and gravel. It belongs to a pollinator plant of exotic flowers. Real seedlings in the plant high, yield, oil quality and other aspects of great variation, production should choose excellent asexual system, with insertion, pressure bar or sub-plant method to reproduce. The inserts are made of annual branches that are about 8 to 10 cm long. Sub-plant method with 3 to 4 years of plants, in late autumn and early winter from the ground 8 to 10 cm pruning, in the base soil, to promote rooting, planting next autumn. Planting land should be open to the sun, and deep soil, the use of manure, compost, calcium perphosphate, ammonium nitrate and potassium salts. In the middle of life pay attention to weeding and control leaf-eating pests, mild pruning in winter. In the flowering period, remove the flowers from the flower branches in full bloom and process them as soon as possible between 10 a.m. and 4 p.m. The average oil rate of flowers is 1.5%.

main ingredients of lavender oil are acetic acetate and camphor. The ingredients that determine aroma are lavender alcohol and acetic lavender ester. It is mainly used in perfume and soap industry, medically as an excitator and drug orthodontist, as a toner for porcelain painting, and as an excellent honey plant.