There are several possibilities when you say yellow leaves: 1, lack of fertilizer, and the soil does not have the required nutrients, so the leaves are yellow. You can go to the flower market to buy a small bag of ferrous sulfate mixed with water and put it on the flowerpot. Remember to apply less!
This kind of flower is afraid of heat. If you put it in the wrong place, it may turn yellow if you are exposed to high temperature and sunshine for a long time. It's best to change to a damp and cool place.
3, the root system in the soil is rotten, change a big pot, trim the rotten root system a little and plant it again, and there will be no problem.
4, water shortage, drought time is too long
5, cold, too cold, generally 5-30 degrees will not be a problem!
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