Reason: The leaves of Buddleja lindleyana turn yellow, which is closely related to the sunshine.Buddleja is more light-loving, but not resistant to strong light, too strong light burns leaves, there will be yellow leaves.
Treatment: It can be removed from the original place, put in a suitable sunshine environment, cut off the yellow leaves, and wait for it to recover.In farming, if it is spring and autumn, because the light is more appropriate, it can receive light all day, so that it can better carry out photosynthesis, so as to grow better.After entering summer, due to the strong light, it is necessary to shade properly in order to avoid strong light burning plants.
Reason: Because this kind of plant likes dry, is afraid of flooding.If a large amount of water is piled up in the pot soil, the problem of root rot will be more obvious, resulting in the problem of leaf yellowing.
Solution: Move the flowers to a sunny and ventilated place as soon as possible, so that the water in the pot can evaporate quickly.If the problem is serious, there is a situation of stagnant water and rotten roots, it is necessary to prune the rotten roots in time, then disinfect them, and then re-plant them.
Reason: Buddleja davidii does not have a high demand for fertilizer during its growth. If too much fertilizer is applied, the roots will be burned out, resulting in yellowing.
Treatment: Excessive fertilization has led to yellow leaves, which need to be removed from the pot, washed the root system and planted in new soil for conservation.It does not require a high level of fertilizer, so it does not need regular fertilization, and a proper amount of base fertilizer can be applied to the substrate soil before planting.
