How to grow lavender? Be detailed. Thank you

1. Watering: Lavender does not like to have water retention at the roots. After a watering, the soil should be dry and then watered, the surface culture medium is dry, the internal moisture is the degree, the leaves are slightly wilted, watering should be in the morning, avoid the sun, and the water should not splash on the leaves and flowers, otherwise it is perishable and breeds diseases and pests.

Persistently humid conditions can cause the roots to not have enough air to breathe and cause poor growth, or even sudden death of the whole plant, which is often the reason for the failure of lavender cultivation. 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.

2. Sunlight: Lavender is a full-day plant, which needs to be full of sunlight and a humid environment, which can give full sunshine to the environment, and can also grow in half sunshine, but the flowering is rarer. Excessive shading will cause growth and susceptibility, but it is best to do some shade treatment in the hot summer to avoid direct sunlight.

In summer, at least 50% of the sun should be shaded and ventilation should be increased to reduce the ambient temperature, so that although the growth is weak, it does not die. In winter, lavender grows well on flat ground and should be cultivated in full sun.

3. Temperature: Lavender is semi-heat-resistant, cool, likes warm in winter and cool in summer, grows at a suitable temperature of 15 25, can grow in 5 30, and is higher than 38 40 for a long time. Limit Temperature:

35 above, long above 38 40 The top stems and leaves are yellow. In the northern winter, dormancy begins to occur when it is below 0 for a long time, and the adult seedlings can tolerate low temperatures of -20 -25 during dormancy.

4. Fertilization: Lavender should not be fertilized too much, otherwise the fragrance will become lighter. Fertilization can be put in the potting soil as a base fertilizer (once every three months), seedlings can be applied Huabao No. 2 (20--20--20), and after the plant is grown, fertilizer with higher phosphate fertilizer such as Huabao No. 3 (20-30-20).

Apply light fertilizer. 5. Pruning: After flowering, it must be pruned, and the plant can be pruned to the original 2 3, and the plant type will be stronger and conducive to growth. After flowering, cut off at the first node under the flower, and by the way, prune the plant into a hemispherical shape.

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 allows the ridge to grow rapidly and needs to be repotted once a year.

6. Disease: When the annual seeding seedlings or cuttings are damaged, the plant wilts, water loss, and the leaf color is dull, and the top of the leaves and branches is bent and drooping downward, which is the most obvious in the budding stage. Mild cases can recover at night, and severe cases die in two or three days, the roots rot, and the stem ducts turn brown and shiny.

In addition to the same pathological manifestations as the seedlings at the seedling stage, the symptoms of wilting appear in the center or edge of the plant, and gradually develop from the inside to the outside, the branches wilt and die, and finally the whole plant dies, and the degree of damage varies with the age and variety of the plant. Generally, it starts in May and peaks in July and August. Lavender is severely ill in France, and the 2-417 cultivar in the former Soviet Union is mild.

1.Sunshine is needed.

2.In summer, it should be watered once a day, once every two days in winter, and once a month, preferably with organic fertilizer.

3.If planted in pots, prune to the bottom of the lavender 4 after flowering.

5 inches high, you need to change to a large pot and add scientific mud.

4.In wet weather, trim the middle part to allow air to flow in.

5.After pruning, the part is retained and can be planted.

The most suitable planting period is after the beginning of autumn).

For more complex species, you can also take a look at the following:

Don't soak the lavender before planting, just control the moisture when sowing and don't make the seeds rot.

1. Prefer weak alkaline soil, and require loose and well-drained.

2. The moisture requirement is dry and wet.

3. Semi-heat-resistant, a warm and humid environment is required in winter, and it should be cool and dry in summer, avoiding high temperature, high humidity and waterlogging.

4. N and P are often applied as the main base fertilizer, and the appropriate amount of K fertilizer should be applied, otherwise the aroma of the plant will be weakened and the quality will deteriorate.

5. Seeds are sown in autumn, the optimal temperature for seed germination is 18 24, light is required, and germination occurs in 14 21 days; At the seedling stage, proper shade should be provided, and topping should be done frequently to promote the seedlings to branch more. The plants that are sown with seedlings have a long lifespan, have strong resistance to adverse environments, and begin to bloom in the second year.