In winter, everything withers, a desolate scene, yet in this cold season, some plant leaves show a unique yellow color, catching people's attention. Why do these leaves turn yellow in winter? This article will reveal the secret of why evergreen plants' leaves turn yellow in winter.
Reasons for evergreen plants leaves turning yellow1. Insufficient light
In winter, the angle of sunlight is low, and plants receive relatively less light. To adapt to this environment, plants will adjust their own physiological mechanisms, resulting in a decrease in the chlorophyll content in the leaves, thus showing a yellow color.
2. Temperature changes
In winter, the temperature is low, and the metabolism of plants slows down. In this case, the supply of nutrients in the plant body is insufficient, leading to the obstruction of chlorophyll synthesis in the leaves, and the leaves gradually turn yellow.
3. Reduced water evaporation
In winter, the rate of water evaporation slows down, and the moisture in the plant body remains relatively stable. Insufficient water will also affect plant growth, causing the leaves to turn yellow.
Evergreen plants with yellow leaves in winter1. Pine trees
Pine trees are a common type of evergreen plant whose leaves will show yellow in winter. This is because pine trees have a special physiological mechanism that allows them to maintain a higher chlorophyll content in winter, thus showing green.
2. Cypress trees
Cypress trees are also among the evergreen plants whose leaves turn yellow in winter. Their leaves will gradually turn yellow but still maintain a green overall appearance.
3. Ginkgo
Ginkgo is an ancient evergreen plant whose leaves will show yellow in winter. This is because ginkgo leaves contain abundant flavonoids, allowing them to maintain a yellow color in winter.
4. Podocarpus macrophyllus
Podocarpus macrophyllus is a common evergreen plant whose leaves will show yellow in winter. This is because Podocarpus macrophyllus leaves contain abundant chlorophyll, allowing them to maintain green in winter.
Caring for plants with yellow leaves in winter1. Increase lighting appropriately
In winter, appropriately increasing the lighting of plants helps to enhance photosynthesis, promote chlorophyll synthesis, and keep the leaves green.
2. Maintain proper humidity
In winter, keep the potting soil of the plants moist to avoid excessive water evaporation, which can affect plant growth.
3. Fertilizing
In winter, applying fertilizer appropriately to supplement the nutrients needed by plants helps their growth.
In winter, some evergreen plants' leaves will turn yellow, which is a physiological phenomenon of plants adapting to the environment. Understanding these phenomena helps us better care for these plants, allowing them to remain vibrant in the cold winter.