Osmanthus, as one of China's traditional famous flowers, is renowned for its unique fragrance and beautiful blossoms. In the cold winter, many osmanthus leaves will gradually wither, which puzzles many flower enthusiasts. This article will analyze the reasons for the withering of osmanthus leaves in winter and provide corresponding countermeasures.
Reasons for the Withering of Osmanthus Leaves in Winter1. Temperature Factor
Osmanthus prefers a warm and humid climate, with the most suitable growth temperature being 20-30℃. When the temperature drops below 5℃, osmanthus leaves will show signs of withering. This is because low temperatures reduce the transpiration of osmanthus leaves, leading to the inability to transport water normally and resulting in leaf withering.
2. Insufficient Water Supply
Osmanthus requires ample water during its growth process. In winter, the low temperature slows down the evaporation of soil moisture. However, if watering is not timely, it can also cause the withering of osmanthus leaves. Excessive watering in winter can lead to oxygen deficiency in the roots, causing leaf withering.
3. Insufficient Light
Osmanthus needs ample sunlight during its growth. In winter, the sunlight is weak, and if osmanthus is exposed to a dark environment for a long time, the leaves are prone to withering.
4. Improper Fertilizer Application
Winter is the dormant period for osmanthus growth, and fertilizer application should be reduced during this time. If excessive fertilizer is applied continuously, it can lead to high soil salinity, affecting the normal growth of osmanthus leaves.
Countermeasures1. Control Temperature
In winter, osmanthus should be placed indoors or in a greenhouse to maintain a room temperature above 5℃. Measures such as increasing indoor humidity and using heating can be taken to create a warm environment for osmanthus.
2. Reasonable Watering
Watering in winter should be moderate, keeping the soil moist. Watering should be done in the morning to avoid oxygen deficiency in the roots at night. Spraying water can be used to increase air humidity.
3. Appropriate Lighting
Place osmanthus in a sunny location, ensuring at least 4 hours of direct sunlight every day. If indoor lighting is insufficient, artificial light sources can be used as a supplement.
4. Control Fertilization
Reduce fertilizer application in winter and apply organic fertilizers such as decomposed chicken manure or cow dung appropriately. After fertilizing, water promptly to prevent fertilizer from burning the roots.
5. Clear Withered Leaves
When osmanthus leaves wither, clear the withered leaves in a timely manner to maintain ventilation and light penetration of the plant. Check for the presence of pests and diseases and control them promptly.
The withering of osmanthus leaves in winter is a common phenomenon. Understanding the reasons and taking corresponding measures can effectively prevent the withering of osmanthus leaves. It is hoped that this article can provide assistance to many flower enthusiasts, allowing your osmanthus to grow robustly even in winter.