Air drying, strong sunlight and high temperature are the reasons for the withering and blackening of the leaf tips of the queen of silver. This happens mostly in summer and autumn.
The silver queen likes the humid air environment, and requires the condition of half shade. If the air is too dry, the sun is strong, and the temperature is over 30 ℃, it is easy to cause the appearance of withered and blackened leaf tips.
At this time, you can put the silver queen in this half shade and cut off the withered leaves. Often spray water on the silver queen to keep the humidity, and the newly grown leaves will return to normal.
The root system of silver queen was rotted by the water in the basin soil, which was also the cause of the leaf tip withered and blackened. In the cultivation of silver queen, because the soil is hardened or watered too much, resulting in poor drainage of the soil, at this time, the root system of silver queen is easy to rot, the absorption capacity of water is decreased, the leaf tip will appear black withered or even distorted.
At this time, you can take out the plant of Queen silver, remove the soil, then cut off the rotten root, dry it and plant it with clean wet sand, wait until the root grows again, and then replace it with a new culture soil for curing.
In the cultivation of silver queen for a long time without basin change, the growth of root system will be limited. In the high or low temperature weather, the apex of silver queen's root system will slide, the ability to absorb nutrients will be weakened, which will cause the tip of silver queen's leaf to wither and dry.
At this time, you can take out the plants of the silver queen, cut off the old roots and the dead roots, and cut off the withered leaves, and then place them in a cool place in the half shade. Pay attention to the water spray, the plants can be recovered.