Can elm trees live with withered leaves?
The low-temperature tolerance of Ulmus microphylla is OK, but some experts say that it can accept the low temperature of MINUS five or six degrees, and it is not easy to be frostbitten and frozen when it is placed outdoors. In fact, in my opinion, it means this, but if you want it to grow better, don't try it like this. In the southern region, only warm cities can follow this method. In the northern region, if the outdoor temperature is below zero, it will definitely get frostbite and even freeze to death.
At this time, we should put it indoors. When the temperature is below 15 degrees, the leaves will definitely turn yellow, so don't worry about it. To solve the problem, improve the indoor temperature and keep it at a temperature suitable for its growth. If you want it to continue to grow in winter, you can put it in a heating room at this time. If the temperature is above 2 degrees, will there be deciduous leaves? The growth is quite strong.
Second, the problem of fat and water
Just after moving indoors, when the temperature is 15 degrees, there are still yellow leaves, so it is necessary to check the fat and water. The temperature above 15 degrees is not much different from the temperature in early spring. It is necessary to control the fertilizer and water according to its growth habits. Don't water it too much, about once every three days. Secondly, avoid water accumulation, otherwise there will be rotten roots and leaves will yellow and fall. In fact, it is only necessary to ensure that the soil is in a state of maintenance, which can ensure good growth and avoid the yellowing and withering of leaves.
when the temperature exceeds 15 degrees, some fertilizers can be used at this time, but the concentration is thinner than usual, because although it can continue to grow at this time, its absorption capacity will be relatively poor. If the concentration is too strong, yellow leaves will definitely be produced. Generally, he is fertilized once every 2 days, and just add some water.
Third, the problem of illumination
Warm and sunny growth environment is in line with the habit of small-leaved elm, which needs sufficient illumination to effectively carry out photosynthesis, convert energy in the body and stimulate more chlorophyll, so that the longer the leaves are, the greener they will be. Generally, when moving it indoors, at least four hours of light should be guaranteed every day. If there is not enough sunshine time, yellow leaves and dead leaves are easy to appear. Today, the weather is relatively dry. After receiving the sunlight, the water evaporates quickly. At this time, it is necessary to spray some water to ensure the humidity of the surrounding environment, so that the small-leaved elm can grow beautifully.