If you water too much, the young leaves will turn yellow and the old leaves will not change significantly. But the watering is too little, the plants are short of water, and the old leaves begin to turn yellow from the bottom to the top. If the water shortage time is long, the leaves of the whole plant will be dark yellow and even die.
Solution: water timely and appropriately according to the situation of basin soil. Flowerpot is smaller, should often water, flowerpot is bigger, wait for soil surface to become dry after watering. It's better to water thoroughly, and the basin soil should not accumulate water.
Too much or too much fertilization, leaves grow well on the surface, leaves are thick and glossy, but leaves will be uneven for a long time, and rotten roots may appear in serious cases; while peony lacks nutrients, or does not apply fertilizer for a long time, which shows yellow at young leaves and young stems, gradually causing yellow or even death of the whole plant.
Solution: apply too much fertilizer, water in time, take the plant out of the basin and change the soil when it is serious. When lack of fertilizer, do not apply concentrated fertilizer at one time, and gradually supplement nutrients.
Peony is a fleshy root. The pot soil is not suitable. If the pot is not changed in time, bacterial infection will cause rotten roots. At the initial stage, it is difficult to find the difference in the above ground part, but the absorption capacity of the root gradually weakens, and the lower leaves will gradually turn yellow and spread to the whole plant.
Solution: change pots every year to check the growth of roots and repair roots in time. When watering, pay attention to proper measures to avoid ponding and rotten roots.
Peony flowers are often harmed by grubs, mole crickets and other underground pests and nematodes. The leaves of peony flowers lose their green and turn to earthy yellow, even withered and scorched. The main characteristics of this symptom are yellowing and scorching of single or several leaves in a certain place.
Solution: in case of symptoms, fill the root with medicine in time, or take the plant out of the basin and replace it with new soil after disinfection.
