Lavender is very adaptable. The adult plant is resistant to both low temperature and high temperature, and can withstand high temperature of about 40℃ in harvest season. In Huanglong, Shaanxi, lavender plants overwinter safely in the open field at-265438 0℃. In Xinjiang, it is buried in the soil and covered with snow, which can withstand the low temperature of -37℃. The seedlings can tolerate the low temperature of-10℃.

moisture

Lavender is a plant that likes to be dry and needs less water, with an annual rainfall of 600 ~ 800 mm During the green turning period and budding period, plants grow faster and need more water. The water requirement at flowering stage is low; The amount of water should be appropriate during the fruiting period; Winter dormancy should be irrigated or covered with snow in winter. Therefore, the ideal rainfall distribution in a year is more in spring, moderate in summer and more in winter.

sunlight

Lavender is a kind of long-day plant, which needs sufficient sunshine during its growth and development, and the annual sunshine hours are required to be above 2000h h. If a plant is in a humid environment, it will develop poorly and age faster.

land

Lavender has a well-developed root system, and likes deep, loose, breathable fertile soil rich in silicon and calcium. Soil with strong acidity or alkalinity and plots with high viscosity, poor drainage or high groundwater level are not suitable for planting. ?

Extended data

Efficacy and function of lavender

1. Medicinal parts of lavender

Lavender is pungent and cool, and has been widely used in medical treatment since ancient times. Its fragrance is fresh and elegant, and its nature is mild. Chinese medicine also has lavender as medicine. Lavender is known as the "King of Herbs", its stems and leaves can be used as medicine, and its flowers also have certain medicinal value.

2. The calming and calming effects of lavender.

Lavender is considered to be the most calming, soothing and hypnotic plant. It can relieve tension, calm down and soothe the nerves. Some hospitals abroad use volatile oil extracted from lavender to improve the sleep of the elderly. In Xinjiang, many Uighur hospitals also use lavender preparation to treat neurasthenia and insomnia.

3. The antibacterial effect of lavender.

It is found that lavender has obvious antibacterial effect, and linalool contained in lavender is the main antibacterial component of lavender, which can inhibit the growth of 17 kinds of bacteria (including gram-negative bacteria and gram-positive bacteria) and 10 kinds of fungi.

References:

Baidu encyclopedia-lavender