Hibiscus, also known as China Rose, is an ornamental plant with extremely high value, whose bright flowers and unique leaf shapes are deeply loved by gardening enthusiasts. During the maintenance process, the yellowing of hibiscus leaves occurs from time to time, causing confusion for many gardening enthusiasts. This article will reveal the reasons for the yellowing of hibiscus leaves and provide corresponding fertilizer solutions to help your hibiscus regain vitality.
Reason Analysis for Yellowing of Hibiscus Leaves1. Insufficient Water: Hibiscus prefers a humid environment. If watering is not timely or the soil drainage is poor, it can lead to yellowing of the leaves.
2. Improper Application of Fertilizer: Excessive or improperly applied fertilizer can cause the leaves of hibiscus to turn yellow.
3. Insufficient Light: Hibiscus requires ample sunlight. If it is kept in a dark environment for a long time, the leaves are also prone to yellowing.
4. Pest and Disease Infection: Yellowing of hibiscus leaves may also be caused by pest and disease infections.
Fertilizer Improvement for Yellowing of Hibiscus Leaves1. Application of Organic Fertilizer: Organic fertilizers are rich in various nutrients required by plants and can improve soil structure and enhance soil fertility. For the issue of yellowing leaves of hibiscus, applying decomposed chicken manure, cow dung, and other organic fertilizers once a month can help restore the green color of the leaves.
2. Using Compound Fertilizer: Compound fertilizers contain nitrogen, phosphorus, potassium, and other nutrients, which can meet the nutritional needs of hibiscus growth. When the leaves of hibiscus turn yellow, a moderate amount of compound fertilizer can be applied to supplement the nutrients needed by the plant.
3. Foliar Spraying: Foliar spraying is a quick method to supplement plant nutrition. A foliar fertilizer with a moderate content of nitrogen, phosphorus, and potassium can be chosen, diluted according to the instructions, and evenly sprayed on the leaves of hibiscus. Spraying once every 10 days can help improve the yellowing of the leaves.
Precautions1. Fertilizing Time: The growth peak of hibiscus is in spring and autumn, which are the best seasons for fertilizing.
2. Fertilizing Amount: The amount of fertilizer should not be excessive to avoid fertilizer damage. It is generally applied according to the recommended dosage in the fertilizer instructions.
3. Fertilizing Method: Fertilizer should be evenly applied to the soil, avoiding direct contact with the leaves.
There are many reasons for the yellowing of hibiscus leaves. For different reasons, we can take corresponding fertilizer solutions. Reasonable application of fertilizers, maintaining soil moisture, providing ample sunlight, and timely prevention and control of pests and diseases are all important measures for maintaining hibiscus. It is hoped that this article can provide useful references for your yellowing hibiscus leaf problem.
References:
[1] Zhang Hua, Li Ming. Research on the Control of Diseases and Pests and Maintenance Techniques of Hibiscus [J]. Flowers, 2018, (3): 45-47.
[2] Wang Fang, Liu Yang. Research on Fertilization Techniques of Hibiscus [J]. Agricultural Science and Technology, 2019, (6): 78-80.