1、 Causes of blade blackening

1. The light in summer is more exciting. If the leaves of green rose are exposed to the sun for a long time, the phenomenon of dry tip and scorched edge of the leaves will appear

2. When watering at ordinary times, don't pay attention to irrigate it with too much water, so that the root system of the plant can't breathe. In the long run, the root system will rot gradually, which will affect the growth of the plant and cause the leaves of the plant to wilt and blacken gradually

3. When using fertilizer, the concentration should not be too high, so as not to burn the root of the plant and curb its root growth

4. In winter, if the green rose is not kept warm, when the weather is slowly warm, the frozen leaves of the green rose will gradually turn black after thawing

2、 How to remedy it

1. If it is caused by heavy water, it is necessary to replace its cultivation soil in time, trim the diseased roots, spray disinfectant, and then plant

2. If it is caused by too strong light, it needs to be moved to a cool and ventilated place for maintenance, so it will recover after a few days. In addition, the plants should be kept warm in winter and should not be frozen