What to do when azalea leaves turn yellow
Today's focus is on how to deal with azalea leaves turning yellow and some small green plant maintenance tips for solving the problem. Below, the editor will provide you with detailed answers.
Many families cultivate azaleas, and it is inevitable to encounter various problems in daily maintenance. For example, what should we do when azalea leaves turn yellow? How to solve this problem when you find it? In fact, there is always a way to solve it when there is a reason. Let's talk about the solutions for azalea leaves turning yellow.
【Reasons and Solutions for Azalea Leaves Turning Yellow】
<1. Unsuitable Environment>
Most azaleas purchased from the flower market are cultivated in greenhouses. When brought home and suddenly changing the growing environment, they may experience discomfort and yellowing of leaves.
Solution: When you bring a new azalea home, remember to keep the air and potting soil moist, and provide a ventilated environment. Do not rush to change the soil or fertilize, and try to help it safely through the adaptation period.
<2. Overwatering>
When浇 too much water on azaleas, the potting soil remains too moist for a long time, causing soil hypoxia, leading to the rotting of some fibrous roots, obstructing normal respiration and the absorption of moisture and nutrients, causing the leaves to turn yellow and fall off. Initially, the tender leaves turn light yellow, followed by the older leaves gradually turning yellow.
Solution: Watering should be done in the morning or evening, especially not during the hot summer midday. In spring and autumn, water every 2-3 days. During the rainy season or when it's humid, stop watering and promptly remove accumulated water in the pot. After October, when the pot should be brought indoors, and watering should be reduced to maintain slightly moist potting soil.
<3. Unsuitable Potting Soil>
Azaleas prefer to grow in slightly acidic and loose soil. If the potting soil is alkaline or has been watered with alkaline water for a long time, it will directly affect the absorption of nitrogen, iron, and other elements by the roots, leading to iron deficiency and leaf yellowing.
Solution: To prevent leaf yellowing caused by iron deficiency, water with 0.2% ferrous sulfate solution daily, and the leaves will not turn yellow or even wither and fall off. Additionally, adding a few drops of edible rice vinegar to the watering water can also increase the acidity of the soil.
<4. Improper Fertilization>
What to do when azalea leaves turn yellow
Over-fertilizing azaleas can lead to thick and uneven new leaves, while old leaves become dry,尖尖, and fall off. Insufficient fertilization can lead to weak branches and leaves, thin and yellow leaves.
Solution: If over-fertilized, stop fertilizing immediately, increase watering to allow excess fertilizer to flow out from the bottom of the pot, or immediately repot and rinse the soil clump with water before replanting. If under-fertilized, add appropriate fertilization.
<5. Unsuitable Temperature>
Azaleas are not cold-resistant. Low temperatures in winter can easily cause leaves to turn yellow and wither. However, high temperatures can also cause leaves to turn yellow due to excessive transpiration, leading to insufficient water and nutrient supply to the roots.
Solution: After moving outdoors in spring, when the sun is gentle, azaleas should be shaded during the middle of the day. In summer, they should be placed in a ventilated and cool place, and shade should be provided with reed mats, bamboo mats, or shade nets. In autumn, the intensity of sunlight gradually decreases, and azaleas can be exposed to more sunlight before 9 a.m. and after 5 p.m. The room temperature in winter should be around 10℃.
<6. Insufficient Sunlight>
If a plant that enjoys sunlight is kept in a shaded or poorly lit area for a long time, it will lead to徒长 of branches and leaves, thin and yellow leaves, and little or no flowering.
Solution: In spring and autumn, azaleas can be exposed to more sunlight before 9 a.m. and after 5 p.m. In winter, they should be moved indoors and placed in a sunny location. Prevent high-temperature exposure in summer.
<7. Air Pollution>