With the arrival of winter, many flower enthusiasts find that the once lush green milkvetch leaves begin to turn yellow gradually, which not only affects the ornamental value of milkvetch but also confuses the flower growers. What are the reasons for the yellowing of milkvetch leaves in winter? How can we prevent and control this phenomenon? This article will provide you with detailed answers.
Reasons for Milkvetch Leaves Turning Yellow in Winter1. Insufficient light
Milkvetch is a plant that loves sunlight. In winter, the intensity of sunlight weakens. If the growing environment is too dark, it can lead to the yellowing of milkvetch leaves.
2. Low temperature
The temperature drops in winter, and milkvetch is not cold-resistant. If the temperature is too low, it can cause the leaves of milkvetch to turn yellow.
3. Improper water management
Milkvetch prefers a moist environment but fears waterlogging. In winter, the temperature is low, and the soil evaporates slowly. If watered excessively, it can easily lead to root hypoxia and cause the leaves to turn yellow.
4. Improper fertilization
Excessive or improper fertilization can cause the leaves of milkvetch to turn yellow. In winter, milkvetch grows slowly and the amount of fertilizer should be appropriately reduced.
5. Pest and disease attacks
The yellowing of milkvetch leaves in winter may also be caused by pest and disease attacks, such as red spiders and scale insects.
Prevention and Control Methods for Milkvetch Leaves Turning Yellow in Winter1. Increase light appropriately
Place milkvetch in a place with plenty of sunlight, such as a south-facing windowsill or balcony. If there is insufficient light, supplementary lighting can be provided with lights.
2. Control temperature
In winter, milkvetch should be placed in a warm environment, maintaining the room temperature above 10℃. If the temperature is too low, devices such as heaters or electric blankets can be used to increase the room temperature.
3. Water reasonably
In winter, milkvetch grows slowly, and watering should be moderate, keeping the soil slightly moist, and avoiding excessive watering to prevent waterlogging.
4. Fertilize scientifically
In winter, milkvetch grows slowly, and the amount of fertilizer should be appropriately reduced. Fertilizers high in phosphorus and potassium, such as monopotassium phosphate and potassium sulfate, can be chosen.
5. Prevent and control pests and diseases
Regularly inspect the leaves of milkvetch. If pests and diseases are found, control them in a timely manner. Pesticides and fungicides can be sprayed, and attention should be paid to safe use.
The yellowing of milkvetch leaves in winter is a common phenomenon. Understanding the causes and prevention methods is crucial for flower enthusiasts. As long as we master the correct care techniques, we can keep milkvetch green even in winter. It is hoped that this article will be helpful to you.