1, low temperature
Three-leaf poplar, also known as dwarf red, belongs to creeping shrubs and is often planted as bonsai. What is the reason why Populus triloba also loses its hair when planting? In winter, it is best to control the temperature above 8 degrees. If the temperature is too low, plants will lose their leaves and even freeze to death.
2. Improper watering
Yang Xi, a three-leaf poplar, is afraid of waterlogging, so the watering amount should be strictly controlled during breeding, neither too much nor too little. Too much watering will make the soil accumulate water and cause the leaves to fall off. Too little watering will make plants short of water, which will cause the leaves to dry and turn yellow. Every time you water the flat branches, you can water them around the flowerpot.
3. Insufficient lighting
Castanopsis is a semi-shade plant, which needs astigmatism irradiation when it is cultivated. If plants are cultivated in the shade for a long time, the leaves will dry up due to insufficient light. Usually, it can be cultivated in a semi-cool and ventilated place indoors, and it can be properly shaded when the light is strong.
4. Soil degradation
Castanopsis fargesii grows very fast, so it is necessary to change the pot soil in time according to the plant size. If the soil is not changed for a long time, the permeability and drainage of the soil will decrease, leading to the loss of leaves. When cultivating litchi, the garden soil and river sand can be mixed for soil preparation, or the garden soil and furnace ash can be mixed for soil preparation.
5. The light is too weak
Placing Pingzhi in a cool environment for a long time will make its leaves turn yellow and black.