Lavender seeds are small and suitable for seedling raising and transplanting. Sowing can be done at any time in warm areas all year round, and it is suitable for spring sowing in cold areas. Before sowing, level the land, water it, soak it underwater and sow it evenly, then cover it with a layer of fine soil, 2-3 times the thickness of the seeds, and cover it with grass or plastic film to keep it moist.
Watered lavender likes dry environment and is not resistant to moisture. It is forbidden to water frequently at home, and there should be no water in the basin or ground, so it should be ventilated. After the pot is put away, water it once. The principle of watering after survival is "see dry and see wet". Be careful not to pour water directly on the leaves when watering, and don't let the soil splash on the branches and leaves to avoid diseases. You can also spread a layer of pebbles on the soil surface of the flowerpot, which is beautiful and can prevent diseases. If tap water is used, it is best to use it in the sun for two days.
Lavender in Rizhao is a long-day plant, and light plays a very important role in its development and the formation of aromatic oil. Excessive shading will lead to excessive growth and disease, but it is best to do some shading treatment in hot summer to avoid direct sunlight.
Lavender doesn't need much fertilizer to fertilize. In the spring with rapid growth (March-May), the compound fertilizer of nitrogen, phosphorus and potassium can be applied monthly to make a solution for irrigation, and the concentration is 1%. Too much nitrogen fertilizer can easily lead to excessive growth.
After setting the flower, cut off the first node under the flower and trim the plant into a hemisphere by the way. Usually, dry the branches at any time. In order to control plant height or obtain better plant type, it should be cut again in late summer and early autumn to promote the development of new branches. When the seedlings are too dense, they can be properly thinned and transplanted when the seedling height is about 10CM. It grows very fast and needs to be changed once a year.
There is little pest control. The disease is mainly root rot, and the incidence rate is the highest in high temperature and stagnant water environment. Control method: root irrigation with 800 times solution of carbendazim and chlorothalonil once a month, especially in June-65438+10. Pay attention to prevent water accumulation and keep the air dry.