How to cultivate crape myrtle and its planting methods and matters needing attention

Crape myrtle has received a lot of praise since its birth, because crape myrtle is a kind of plant with very auspicious symbolic significance, but in the past, most of the cultivation was small-scale family breeding, mostly the conscious behavior of people who love flowers, so the quality of cultivation is not very important, but today, planting crape myrtle is more demanding in appearance. Therefore, the importance of planting techniques and methods is also constantly highlighted.

How to raise crape myrtle

Crape myrtle is suitable to grow in warm and humid sunny environment, but also can accept semi-overcast environment. Adequate fertilizer is needed for growth, and it is best to use rich and deep sandy soil, both acidic soil and calcareous soil. In terms of humidity, crape myrtle should be planted in wet soil, and it has a certain adaptability to the dry environment, but it is afraid of waterlogging, so we can not choose the low wet place with high groundwater level when planting. Crape myrtle has a strong anti-pollution ability, which can resist the pollution of sulfur dioxide, hydrogen fluoride and chlorine to a certain extent.

Planting method of crape myrtle

1. Soil

Crape myrtle has a strong environmental adaptability, the general culture soil can be applied. If possible, deep and fertile sandy soil can be selected for cultivation, which is most beneficial to the growth of crape myrtle.

Second, watering

Crape myrtle can fight drought and avoid waterlogging. It can be watered once before spring germination and once frozen water after falling leaves in autumn. At other times, pay attention to "no dry, no watering". Water should be watered 1-3 times in spring drought; waterlogging should be done well in rainy season to avoid rotting roots caused by stagnant water; generally, watering is not needed in autumn.

Third, lighting

Crape myrtle needs sufficient light for its growth, otherwise it will cause few or no flowers during flowering, and even weaken the growth of the whole plant more seriously.

Fourth, temperature

The mature crape myrtle plant has strong cold resistance, but the cold protection and heat preservation of the seedlings must be done well. After the cultivation has reached more than three years old, the heat preservation can be stopped.

5. Fertilization

It is similar to the time of watering, fertilizing once before sprouting in spring and once after falling leaves in autumn. Human feces and urine or sesame sauce dregs can be applied to promote plant growth in the coming year, and flowering more luxuriantly and brightly.

VI. Pruning

As the inflorescence of crape myrtle is planted at the top of the new branches of the year, attention should be paid to the re-cutting and retraction of the annual branches, which is conducive to the concentration of nutrients and make the branches grow more healthily. The long branches, drooping branches, disease and insect branches, dry and withered branches, slender branches and endophytic branches should be cut off, and the lateral branches at the lower end of the plant trunk should also be cut off in time when the young tree is young, so as to reduce the consumption of nutrients and ensure a good crown formation in the upper part of the plant trunk.

VII. Insect pests

Crape myrtle is easy to be infected by insect pests such as velvet scale, yellow diamondback moth and large coir moth, so timely spraying and other measures should be taken to control it.

Matters needing attention in crape myrtle culture

1. Florescence

Crape myrtle has strong branching ability and a large number of long shoots, so it is necessary to cut off the residual flowers after flowering, promote the new hair of the plant, and make the next round of flowers grow as soon as possible, so as to prolong the flowering period. At the same time, it is necessary to cut off long branches, diseased branches, stacked branches and interspersed branches in time to prevent excessive consumption of nutrition.

2. Soil exchange

Potted crape myrtle had better change the pot soil every 2-3 years. The cultivated soil can be mixed and prepared according to the ratio of loose mountain soil: pastoral soil: fine river sand (5:3:2), and the base fertilizer can choose organic fertilizer (bone meal, bean cake powder, etc.). Pay attention to avoid direct contact between roots and fertilizer, otherwise it will burn roots and hurt roots, endangering the normal growth of plants.

Grafting propagation of crape myrtle

This method should be carried out between late February and early March every year, that is, before the sprouting of crape myrtle branches.

Strong seedlings should be selected as rootstocks for grafting. Scions can be selected according to individual flower and color preferences. Split grafting is often used in grafting.

First, a knife with a depth of about 5-8 cm is made vertically in the outer part of the top of the rootstock, and then the scions of about 5-8 cm long with two buds are cut into a wedge, then inserted into the split of the rootstock at the cambium, and then wrap the whole ear with plastic film so that only the bud head is exposed.

Using this method, branches of different colors can be grafted layer by layer on a single rootstock to form a "multi-color tree".

Crape myrtle has a very clear requirement for the environment, so we should take this requirement as a benchmark when planting crape myrtle, so as to ensure the normal growth of crape myrtle. In addition, some other maintenance skills of crape myrtle can help crape myrtle grow more perfect and flourish.