In order to make potted landscape of Lagerstroemia specie more efficient, we should first choose the suitable species.
At the end of autumn and the beginning of winter, we can select Lagerstroemia indica varieties with thick stem growth for grafting and variety improvement. This method is relatively convenient, and the plant survival rate is high.
Because of its short and dense internode, small leaves, easy flowering, long flowering period and gorgeous color, crape myrtle horticultural varieties can also be used to make bonsai. It needs to carry out seedling cultivation first, and then prune and shape according to the modeling techniques of bonsai production.
In the process of potting, pile landscape should be placed according to the shape of pile materials and the needs of modeling.
Then pour the prepared loose and fertile humus soil around the flowerpot to make the root system contact with the soil closely. After pouring sufficient root fixing water, place it in the leeward shade for maintenance.
At ordinary times, the method of spraying water on the branches should be adopted to keep moisture, to avoid air drying of the trunk, and to move to the sunny place for maintenance after germination.
The long-term transpiration of Lagerstroemia indica is vigorous, so the pot soil must be kept moist.
At the initial stage of the growth of the flower branches and leaves of Lagerstroemia indica, the amount of water should be properly controlled to avoid the excessive growth of the landscape branches and leaves in the flowerpot of Lagerstroemia indica.
Sufficient water needs to be poured from the formation of flower bud to the flowering period, especially in the high temperature and drought summer, and the water quantity needs to be increased. The method of spraying water on the canopy and leaf surface is adopted to increase the air humidity; the water demand of plants in winter is small, and the water can be sprayed occasionally.
It is suitable to apply organic fertilizer in winter, and cake liquid fertilizer and other organic fertilizer without P and K should be applied every week in growing period.
Before and after flower bud formation, it is suitable to spray 0.2% potassium dihydrogen phosphate solution on the leaf surface, which is conducive to flower bud differentiation and bud expansion.
A sufficient amount of organic fertilizer should be applied after each flowering period.
After the leaves of Lagerstroemia flower, according to the needs of bonsai modeling, prune the common branches, leaving 1-2 buds for each branch.
For a long time, Lagerstroemia speciosa mainly prunes the over dense branches, the over long branches and the worthless branches which grow on the base.
In order to make crape myrtle potted landscape bloom many times in a year, it is necessary to remove the remaining flowers in time after each flower withers, so as to avoid consuming nutrients due to the results.
The potted landscape of crape myrtle is suitable to be changed once every two years or so. The time of basin change can be chosen in winter and spring.
According to the needs of crape myrtle bonsai modeling, replace it in time, remove part or all of the old soil, cut off some redundant ring roots and dry roots, ensure the fertility of the soil, and carry out the usual maintenance management after the water is poured through.
