Cause: if the amount of water is too large, the roots will rot due to lack of appearance, and the leaves will turn yellow. If the water is short for a long time, the leaves will age and turn yellow.
Solution: often loosen the soil for it, grasp the water volume, as long as it can keep wet at any time, do not need too much water.
Reason: if you put it indoors for a long time, it will cause the leaves to turn yellow if you can't get enough sunlight
Solution: when the sun is full, you can put it outside, and increase the time of being illuminated.
Cause: too much fertilizer will cause the leaves to become thick and yellow, and too little fertilizer will cause the leaves to become thin and yellow.
Solution: excessive amount of fertilizer can be properly watered, and stop fertilization, while less amount of fertilizer can increase the amount of fertilizer, usually to master the amount of fertilizer, not too much or too little water.
Reason: Begonia flowers like to grow in a half - shade environment. If the temperature is too high or too low, the leaves will turn yellow.
Solution: when the temperature is high in summer, you can put it indoors, or take some shade measures properly. When the temperature is low in winter, you can put it in a better position of light
