Cause: if you usually water too often or too long between watering, it will cause the leaves to turn yellow. If the amount of watering is not well controlled, too much or too little will also cause the leaves to turn yellow.
Solution: if lack of water, increase the amount of water, if the amount of water is large, loosen the soil and reduce the amount of water, water regularly at ordinary times, control the amount of water.
Reason: too high fertilization concentration or lack of nutrients due to fertilization, leaves will become yellow, and even wither and die.
Solution: when applying fertilizer, the concentration should not be too high, the amount of fertilizer should not be too much and should not be too frequent. If the amount of fertilizer is large, the amount of water can be increased to consume fertilizer.
Cause: if peony flowers grow in alkaline soil, their leaves will turn yellow after a period of time. If they don't care, it will not only aggravate the phenomenon of yellowing, but also lead to death.
Solution: it can be replaced by suitable soil, acid soil, not only can improve the phenomenon of yellow leaves, but also conducive to its growth.
Cause: Peony will be damaged by pests, which will cause yellow leaves or scorch.
Solution: after discovering pests, you should catch them in time, or spray chemicals to eliminate them.
