1. Lack of light: there are many reasons for the yellow leaves of bear cubs. It may be caused by the dark growing environment due to the lack of light. Because its growth is to need sufficient sunshine to illuminate, if be too concealed, can have Huang Hua phenomenon..
2. Too much water: its leaves may turn yellow because of too much water, which will cause root rot, which will cause leaves to turn yellow, or even fall after a slight touch.
Bear cub is a dormant plant of Sedum, so it is different from other plants. It is dormant in summer and grows in winter. In summer, the amount of water should be controlled to avoid rain. Winter is its growing season, as long as the temperature can be kept above 5 ℃, it can grow very well and strong.
In addition to the above two causes of yellowness, there is also a phenomenon of yellowness in bear cubs. However, this phenomenon is not a disease, but a normal variation called "out of brocade", "white brocade" or "yellow brocade". The leaf is not yellow, don't worry too much, because it looks more valuable than green leaves.