Lavender likes cold or warm climate, but it can't stand hot and humid weather. When planting outdoors, be careful not to let the rain directly rain on the plants. Lavender doesn't like to keep water in its roots, and the cultivated soil needs good drainage, so it can be used after being mixed with 1/3 pearl clay, 1/3 vermiculite and 1/3 sphagnum moss. If it is cultivated in the open field, pay attention to soil drainage, and raise the mound into a border before planting. The cultivation site needs sufficient sunshine and good ventilation.
Don't water too much, just water the soil in the pot when it is dry, and try not to water the leaves and flowers, otherwise it will rot and breed pests and diseases. When applying fertilizer, you can put bone meal as base fertilizer in the pot soil (once every three months), Miao Shihuabao No.2 (20-20-20), and then apply a fertilizer with higher phosphate fertilizer, such as Huabao No.3 (20-30-20). Pruning must be carried out after flowering, and the plant can be pruned to 2/3 of its original size, so that the plant type will be stronger and conducive to growth.
Lavender needs plenty of sunshine and humid environment. It can grow in plenty of sunshine, but it has few flowers. When potted, it should not be watered too often, nor should it be preserved for too long to avoid root rot. In order to prevent excessive humidity, red clay pots (clay pots) or smaller plastic pots should be used, rather than large ones. Unless it has grown to a considerable size, due to the use of small pots, it is necessary to pay attention to watering in time to avoid over-drying, and it is better to apply a small amount of fertilizer many times. Especially the flowering period is very long. Lavender likes cold and cool, and is not resistant to high temperature and high humidity. After May, we should move to a place where we can't see the direct sunlight, increase the ventilation, reduce the ambient temperature, keep cool and spend the hot summer safely.
Lavender is suitable for planting in a place with sufficient light, ventilation and good drainage, and likes full sunshine, but it should be avoided in hot summer. Low temperature resistance (-15℃), overwintering as long as it is not frozen, and high temperature resistance (4 1℃). Water it thoroughly once, and then water it again when the soil in the basin is dry. It should be poured directly on the roots to avoid waterlogging. Potted soil can grow ordinary flowers and plants, and the soil is alkaline. Plastic pruning in spring, light pruning after flowering, rapid growth in spring and summer.