Various lavender growing conditions 10

Introduction to the cultivation of lavender seeds.

Cultivation environment] lavender likes warm climate, cold tolerance, drought tolerance, light love, and is afraid of waterlogging. It has low requirements for soil, is resistant to barrenness, and prefers loose and well-drained neutral alkaline soil. Due to its lack of waterlogging tolerance, lavender is difficult to grow in the southern region, but as an aromatic plant, it is an excellent potted flower.

Sowing] lavender seeds are small, suitable for seedling transplanting, warm areas can be sown at any time throughout the year, cold areas should be sown in spring. Before sowing, the land is leveled and fine, watered thoroughly, and after the water seeps, the seeds are evenly sown, and then covered with a layer of fine soil, the thickness is 2-3 times that of the seeds, and covered with grass or plastic film to protect moisture.

Watering] lavender likes a dry environment, not tolerant to moisture, family maintenance should not be watered frequently, potting soil or ground can not accumulate water, should be kept ventilated. After potting, water once permeable, and the principle of watering after survival is "see dry and wet". When watering, be careful not to pour water directly on the leaves, and do not let the soil splash on the branches and leaves, so as not to cause diseases.

You can also spread a layer of small stones on the soil surface of the flower pot, which is not only beautiful, but also can prevent disease. If you use tap water, it's best to use it after two days in the sun.

Sunshine] lavender is a long-day plant, light has a very important role in its development and the formation of aromatic oils, excessive shading will cause growth, and at the same time susceptible to disease, but it is best to do some shade treatment in the heat to avoid direct sunlight.

Fertilization] lavender does not have high requirements for fertilizer, in its rapid growth in the spring (3-5 months), nitrogen, phosphorus, potassium compound fertilizer can be applied monthly, and the solution can be prepared for irrigation, with a concentration of 1%. Too much nitrogen fertilizer can easily cause overgrowth. 【Plasticity】After flowering, cut off the first node under the flower, and prune the plant into a hemispherical shape by the way.

Usually, cut off dry branches at any time. In order to control the height of the plant or to get a better plant shape, it is necessary to re-prune it in late summer and early autumn to promote the growth of new branches. When the seedlings are too dense, the seedlings can be appropriately interspersed, and when the seedlings are about 10cm high, they can be transplanted.

It grows rapidly and needs to be repotted once a year.

Pest control] There are few insect pests. The disease is mainly root rot, and the incidence is highest in high temperature and stagnant water environment. Prevention and control methods: irrigate the roots with carbendazim and chlorothalonil 800 times solution, once a month, especially from June to October, pay attention to prevent water accumulation and keep the air dry.

If you plant seeds in a small number of outside the family.

It can be said that it was in vain.

We here in Ili, because the climate is similar to that of Provence, which were introduced in the 60s, have been planted for more than 40 years, and the large-scale species are mainly propagated by cuttings.

Don't soak in water, the rotten roots will be wasted.

1. Lavender has strong adaptability. Adult plants are resistant to both low and high temperatures, and can tolerate high temperatures of about 40 during the harvest season. In the Huanglong area of Shaanxi Province, lavender plants safely overwintered in the open at -21; In Xinjiang, it can withstand -37 low temperatures after buried soil treatment and snow cover.

2. Seedlings can tolerate low temperature of -10. During the growth and development of lavender in the following year, the average temperature was about 8, and it took 10 15 days to germinate. The average temperature is 12 15, and it takes 20 days for the branches to return to green and elongate.

3. Lavender is a long-day plant, which requires sufficient sunshine during the growth and development period, and requires more than 2000h sunshine hours throughout the year. If the plant is in a humid environment, it will develop poorly and senescent rapidly.

Growth habits.

Lavender is a perennial herb, clumped, multi-branched, often growing upright, the plant height is 30-40cm, 45-90cm depending on the variety, and a single plant can grow to 1m in the mountainous areas at a fairly high altitude. The leaves are alternate, elliptic and pointed, or the leaf surface is larger needle-shaped, and the leaf margins are reversed. Spike-like inflorescences apical, 15-25 cm long; corolla lower tubular part, upper lip-shaped, upper lip 2-lobed, lower lip 3-lobed; The flowers are about long, blue, deep purple, pink, white, etc., and the common one is purple-blue.

Flowering period is from June to August.

Lavender is a light-loving substance, and shading is not conducive to its growth. The requirements for sunshine hours are not strict, and it can grow well every hour, and can produce lavender essential oil that meets the quality requirements. Drought-tolerant, cold-tolerant, barren-tolerant, suitable for growth in slightly alkaline or neutral loam soil with good ventilation conditions, good drainage, deep soil layer, and slight sandiness.

Plots with loose soil, medium fertility, convenient irrigation and drainage, organic matter content of more than 1%, and salt content below should be selected.

Plants in plots with heavy stickiness and high groundwater table are not suitable for planting. Afraid of high temperature, scorching heat and humidity, if it is waterlogged for a long time, it is easy to be infected with diseases and rotten roots and die. The optimal growth and flowering temperature is 15-30, which can grow at 5-35, and is higher than 38-40 for a long time.

Dormancy begins below 0, and the seedlings can gradually tolerate low temperatures of -20 -25 during dormancy.