What are the reasons for yellowing leaves on hibiscus?
Hibiscus, also known as red hibiscus, red rose mallow, etc., is a common flowering plant. The ornamental value and landscaping value of hibiscus are both very high, and it is favored by many people. It has a relatively wide planting area in southern China. However, when planting hibiscus, yellowing leaves often occur. So what causes hibiscus leaves to turn yellow? Below, the editor will give you a brief introduction. Let's take a look together!
1. Improper watering
Although hibiscus likes to grow in a moist environment, this does not mean that hibiscus has strong waterlogging tolerance. If too much watering causes water to accumulate in the soil, then root growth will be hindered, and hibiscus leaves will turn yellow due to lack of nutrients. However, water should not be too little either. If watering is insufficient and the plant relies only on moisture in the air, then it is completely unable to meet the water needed for hibiscus growth. Therefore, when watering, we should follow the principle of watering when dry and stopping when wet, avoiding soil that is too dry or too wet, and ensuring the normal growth of hibiscus.
2. Insufficient light
Hibiscus also has a relatively large demand for light during growth. Although in many cases, some hibiscus planted in the ground can grow normally without shading, more attention should be paid when growing it in pots, because the water and nutrients in the potting soil are limited. If the hibiscus plant is then exposed to direct sunlight, the water will evaporate too quickly, and the leaves are easily scorched. This leads to a series of problems such as soft, wilted, and yellowing leaves. Therefore, when planting potted hibiscus, we should pay attention to providing shade, avoid direct sunlight on the leaves, and provide an appropriate amount of scattered light.
3. Improper fertilizing
When planting hibiscus, fertilizing is relatively important, and this is also the main way for hibiscus plants to obtain nutrients. If fertilizing is insufficient, then the soil nutrients are limited, causing poor nutrition during plant growth, and the leaves will gradually show problems such as yellowing, loss of luster, and weak branches. However, the amount of fertilizer should not be too much either. If too much fertilizer is applied, the plant is prone to fertilizer damage, and fertilizer damage is also a main cause of yellowing hibiscus leaves. Therefore, when fertilizing, we should follow the principle of applying more frequently but in small amounts, ensuring the normal growth of hibiscus.
4. Poor air quality
Air quality is also very important for the growth of hibiscus. If the air quality is too poor, it will cause poor growth of hibiscus. Therefore, if hibiscus grows for a long time in a closed space with poor air circulation, it will cause the leaves to turn yellow. So when planting, we should do a good job of ventilation, discharge harmful gases, and improve air quality. If it is grown as a household potted plant, then we should also pay attention to opening windows frequently for ventilation.
The above is a brief introduction to the reasons for yellowing hibiscus leaves. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!