Causes of yellowing of hibiscus leaves The solution to the yellowing of hibiscus leaves Hibiscus, also known as Zhu Jin and hibiscus flowers, is a common ornamental plant. It is loved by many flower friends because of its bright flowers and unique leaf shapes. During the maintenance process, the problem of yellowing of hibiscus leaves often troubles flower friends. This article will provide you with a detailed analysis of the reasons for yellowing of hibiscus leaves and provide corresponding solutions. Reasons for yellowing of Japanese leaves 1. Insufficient or too much water Hibiscus has a high demand for water, but too much or too little water will cause the leaves to yellowing. Too much watering will rot the roots and affect nutrient absorption; Too little watering will dry the soil and cause the leaves to lose water and turn yellow.
2. Hibiscus likes light if there is insufficient light. Long-term exposure to a dark environment will cause the leaves to turn yellow. Strong direct sunlight will also burn the leaves and turn them yellow.
3. Soil problems If the soil is too poor or too acidic, it will affect the growth of Hibiscus japonica and cause yellowing of leaves. Soil hardening will also affect root respiration, which in turn affects leaf growth.
4. Improper application of fertilizer. Too much or too little fertilizer will cause yellowing of leaves. Too much fertilizer will make it impossible for plants to absorb and cause fertilizer damage. Too little fertilizer will lead to insufficient nutrients and affect plant growth.
5. Hibiscus is susceptible to pests such as aphids and red spiders. It can also infect diseases such as leaf spot disease and root rot. These pests and diseases can cause yellowing of leaves and even cause plant death in severe cases. Methods to solve the problem of yellowing of hibiscus leaves 1. Appropriate watering According to the growth habits of hibiscus, it is enough to keep the soil moist. During the high temperature season in summer, the number of watering can be increased appropriately; during the low temperature season in winter, you should reduce watering.
2. Properly increase the light and place the hibiscus in a place with sufficient light, ensure 4-6 hours of light every day, and avoid strong direct sunlight to avoid burning the leaves.
3. Improve the soil Select soil with good air permeability and strong drainage, loosen the soil regularly, and keep the soil soft. If necessary, apply organic fertilizers to improve soil fertility.
4. Reasonable fertilization According to the growth stage and needs of Hibiscus japonica, reasonable fertilizer should be applied. Nitrogen fertilizer can be applied during the vigorous growth period to promote the growth of branches and leaves; phosphorus and potassium fertilizers can be applied during the flowering period to improve the quality of flowers.
5. Regularly inspect Hibiscus to prevent and control pests and diseases, and take timely measures when pests and diseases are discovered. Pesticides can be used for prevention and control. At the same time, pay attention to rotating the use of drugs to avoid resistance to pests and diseases.
There are many reasons for the yellowing of hibiscus leaves. Only after understanding the reasons can we solve them in a targeted manner. I hope this article can provide some help to flower friends and let your hibiscus thrive.