1、 Soil discomfort

Tiger thorn plum is suitable for growing in loose and fertile soil. If the soil hardens, it will affect the respiration of the root and is not conducive to the infiltration of water, resulting in leaf falling off. Loosen the soil for the plants regularly and change the pots every year. Pot soil can be prepared by yourself. Generally, three parts of vegetable garden soil and one part of slag can be used

2、 Excessive watering

The drought tolerance of Rosa roxburghii is relatively strong, and the demand for water is not high. If you water too much, it is easy to cause the root to be flooded, which will affect the plant respiration and the leaves will fall off. At ordinary times, we must pay attention to the control of water volume. If there is too much water pouring, we need to discharge the accumulated water and pay attention to ventilation to accelerate water evaporation

3、 Insufficient light

Tiger thorn plum grows in the environment with sufficient light, and its growth and flowering will be better. If the environment is too dark and the plants cannot get light, the phenomenon of falling leaves will also occur, and flowering will be affected. In the growth period, it needs to be placed in the sunny place to let it be fully exposed to light. In summer, it needs appropriate shade to avoid sunburn

4、 The temperature is too low

Tiger thorn plum is not resistant to cold. If it is frostbitten in winter, it will also lose its leaves. Therefore, before winter, it is necessary to move the plant to a warm place indoors in time to ensure that the temperature is higher than 0 ℃. If the indoor temperature is not enough, you need to cover the upper part of the plant with a bag, which can also have the effect of heat preservation. In addition, if the temperature exceeds 15 ℃, it can bloom in winter