1、 The reason why the leaves turn black

1. Root frostbite: because the temperature in winter is relatively low, the roots of such plants may be frozen, so that their roots cannot absorb nutrients from the soil for plant growth, so the leaves of the plants turn black

2. Improper watering: giving too much water to the plant will have a bad impact on the root of the plant, and the root of the plant will rot after a long time. The roots can't give the leaves the nutrients they want, so the leaves become lifeless and black

2、 Solution

1. If the degree of plant frostbite is still relatively light, you can cut off the blackened leaves at this time, and then put the plant in a warm place for maintenance. If the frostbite is severe, it is also necessary to dig out the plant from the soil, then cut off its frozen roots, cut off all branches and leaves, and then replant it and place it in a warm place

2. If it is found earlier, the plants can be placed in a place with good air circulation, so that the water in the basin soil will evaporate faster, and the plants will return to their normal appearance slowly. If many leaves have blackened, dig out the plants from the soil, then cut off the rotten roots, disinfect them and replant them into the prepared soil