Strong light sunburn: yellow leaves may appear after smooth sailing and strong light exposure. At this time, it should be put in a slightly shaded position and cut off the yellow leaves. Over fertilizing: over fertilizing or over fertilizing may also cause its leaves to turn yellow. At this time, we should first take it out of the basin and wash its roots, and then plant it in a new soil without much fertilizer for maintenance. Improper watering: too little or too much watering can also cause yellow leaves. At this time, increase or decrease watering properly, and wait for it to recover.
