Culture methods of lavender in Spain

Soil: like slightly alkaline or neutral sandy soil with good drainage. Temperature: the suitable temperature for growth is 15-25 ℃, and 5-30 ℃ can grow normally. Lighting: adequate all-day light should be given in spring, autumn and winter, and appropriate shade in summer. Watering: watering the pot soil after it is dry, each time it is thoroughly watered, the water should not be splashed on the leaves or flowers. Fertilization: topdressing was carried out every 3 months, mainly phosphate fertilizer. Pruning: cut off dry branches in time. Diseases and insect pests: actively control root rot and so on.

First, choose soil

Spanish lavender likes to grow in slightly alkaline or neutral sandy soil with good drainage, so potted soil can be cultivated with a mixture of vermiculite, perlite and peat.

2. Suitable environment

Spanish lavender likes to grow in a cool environment, the suitable temperature for growth is 15-25 ℃, generally as long as the temperature is 5-30 ℃, it can grow normally, if the temperature is above 35 ℃, or the temperature is higher than 38-40 ℃ for a long time, the top stems and leaves of Spanish lavender will be prone to withered and yellow phenomenon, generally in winter in the north, when the temperature is below 0 ℃, it will begin to dormancy.

Third, lighting requirements

Spanish lavender is a full-sun flower plant, so it is necessary to give sufficient all-day light in spring, autumn and winter, of course, Spanish lavender can grow normally in half-day environment, but flowering is rarer. In the hot summer, it is necessary to shield the Spanish lavender from 50% of the light, and to strengthen ventilation and reduce the ambient temperature.

IV. Watering requirements

Generally, after watering Spanish lavender, you have to wait until the basin soil is dry before watering. If the basin soil is too wet, it will cause Spanish lavender leaves to wilt slightly. Watering can be carried out in the morning. Be careful not to splash on leaves or flowers to avoid plant decay or insect pests.

V. fertilization matters

Bone powder can be put in the basin soil as base fertilizer, and topdressing can be carried out every 3 months. if it is Spanish lavender seedlings, Shi Huabao No. 2 can be used until Spanish lavender is grown up, and then apply appropriate amount of fertilizer with high phosphate fertilizer, such as Huabao No. 3, the concentration of fertilization should not be too high.

VI. Pruning and plastic surgery

After Spanish lavender blossoms, the first section of the flowering branch needs to be cut off, and the plant can also be trimmed into a hemispherical, usually only the dry branches need to be cut off, in addition, in order to control the growth height of the plant, Spanish lavender can generally be properly re-cut in late summer and early autumn, which is conducive to the growth of new branches.

VII. Prevention and control of diseases

The common diseases of lavender in Spain are root rot, generally in stagnant water or high temperature environment, the incidence rate is relatively high, during this period, 800 times solution carbendazim and chlorothalonil can be used to irrigate the root, it is recommended to irrigate the root every 30 days, especially from June to October, the stagnant water in the basin should be emptied in time and the environment should be kept dry.

8. Change the basin

Spanish lavender grows faster, so it needs to be changed every other year.