In winter and spring, jasmine leaves often appear “dry blueâ€. The so-called "Qing Qing" refers to the fact that the leaves are as green and lovely as they are alive, and there are no signs of wilting. But when you approach the hand, the already dried leaves will fall into pieces and fall to the ground. The main reason for this “dry blue†phenomenon is that it is caused by improper water supply to jasmine plants that have a low ambient temperature and low air humidity. The jasmine activity of root water absorption can proceed rapidly under high temperature conditions. When the ambient temperature is low, its root water absorption function will be greatly reduced. In winter and spring, in China, especially in the north, the indoor temperature is low, and the air humidity is not great. In this case, the transpiration of the jasmine leaf is often more than the water absorbed by the root system. In this case, if the watering is neglected, the jasmine leaf, which is already in a water-deficient state, can easily cause a “dry blue†phenomenon. In order to avoid damage to the slow growth and ornamental value caused by the dry leaves of the jasmine leaves, the best way is to sprinkle water around the cultivation site every day in order to increase the air humidity. At the same time, it is necessary to diligently check the dryness and wetness of the basin soil, and it is often necessary to maintain the micro-tide of the basin. Be careful not to use the method of raising the ambient temperature to solve this problem. Otherwise it is difficult to maintain a certain range of high temperature conditions but will disrupt the rhythm of jasmine plant growth and affect the subsequent normal growth. China Agricultural Network Editor