What's wrong with the yellow leaves of hibiscus? What should I do if the leaves of hibiscus turn yellow?

Hibiscus is a common ornamental plant with green leaves and bright flowers. It has a high ornamental value and is suitable for planting in gardens and courtyards. However, during the production process, the leaves of hibiscus often turn yellow. The yellowing of its leaves will affect its normal growth and its ornamental value. So what causes its leaves to turn yellow? How should we deal with its yellowing leaves?

What's wrong with the yellow leaves of hibiscus? What should I do if the leaves of hibiscus turn yellow?

1. Improper watering

Hibiscus is a green plant that likes warm and humid environment. During its growth process, if the watering is not reasonable, its leaves will turn yellow. Usually, when the kapok flower grows normally, just keep the soil moist. If the soil is too dry or too wet, its leaves will turn yellow. The best way to deal with it is to control the amount of watering, and to do drainage in time in high-incidence weather.

2. Improper fertilization

If the hibiscus is not properly fertilized during its growth, such as too much fertilizer or too little fertilizer, its leaves will turn yellow. The fertilizer applied to the hibiscus during its growth should be mainly phosphorus and potassium fertilizers. If its leaves turn yellow, it should be supplemented with an appropriate amount of nitrogen fertilizer. If the leaves turn yellow due to excessive fertilization, it is necessary to water in time to dilute the fertilizer.

3. Pests and diseases

The emergence of diseases and pests is also the main reason for the yellowing of hibiscus leaves. After some diseases occur, they will leave a large number of small black spots on the back of the leaves. In severe cases, the leaves will turn yellow. At this time, it is necessary to spray pesticides in time. It is best to spray mancozeb. When the medicine kills all the pests on the hibiscus, its leaves will slowly return to normal color.

4. Root damage

Normally, if people make hibiscus flowers into potted plants and grow them indoors, they need to replace the pots every year. When changing the pots, if the renewal of the hibiscus flowers is accidentally damaged, the leaves of the hibiscus flowers will turn yellow and fall off after being moved into new pots. The best way to deal with this is to place the hibiscus flowers in a cool environment to slow down the growth. After its root system returns to normal, it will grow new green leaves.