One million bolls have a certain cold tolerance, but if they are in the cold areas of the north, it is recommended to move them indoors to avoid frostbite affecting the growth of the next year.Pruning should be carried out after winter, and some weak branches and twigs should be cut off, leaving only strong branches.The height of the whole plant is controlled at about 15 centimeters, which can save a lot of nutrients and is beneficial to the flowering and growth of next year.In addition, but also on the light department, usually let it bask in the sun, do not water at will.
1, lack moisture: Its growth is more to the requirement of moisture, want ground to water ability to go.If the soil is short of water for a long time, the leaves below will slowly wither and yellow.After discovery, water should be replenished as soon as possible, and it is better to irrigate once permeable, but pay attention to not accumulating water.
2. Improper illumination: It likes light, but can not accept the hot sun for a long time.The leaves will be yellow and wither slowly under the hot sun.Of course, can not see the light, otherwise the leaves will lose green, yellow, withered.It's better to put it in a place with astigmatism feet and see light for six to eight hours a day, so the environment will grow better.
3. Infected with diseases: If the environment provided at ordinary times is not suitable, the leaves will be infected with diseases, and the leaves will wither.The diseased leaves should be cut off in time to avoid infection.It is also necessary to spray pesticides to prevent and control them thoroughly.Later changes in the maintenance environment can slowly recover.