As the autumn breeze brings coolness, various parts of our country gradually enter autumn. In this beautiful season, many flowers also usher in their blooming period. However, some flower enthusiasts find that the leaves of Catharanthus roseus start to turn yellow in autumn, which puzzles and concerns them. What should we do if the leaves of Catharanthus roseus turn yellow in autumn? This article will unveil the strategy for maintaining Catharanthus roseus in autumn.
Reasons for the yellowing of Catharanthus roseus leaves in autumn1. Climatic factors: The temperature gradually decreases in autumn, with large temperature differences between day and night. Catharanthus roseus is sensitive to temperature changes and prone to leaf yellowing.
2. Improper water management: Catharanthus roseus requires less water in autumn. Excessive or insufficient watering can cause the leaves to turn yellow.
3. Improper fertilization: Catharanthus roseus has reduced fertilizer requirements in autumn. Excessive or concentrated fertilization can easily lead to leaf yellowing.
4. Diseases and pests: Autumn is a high-incidence period for diseases and pests. If not promptly controlled, it can also cause the leaves of Catharanthus roseus to turn yellow.
What to do if the leaves of Catharanthus roseus turn yellow in autumn1. Adjust watering: Catharanthus roseus requires less water in autumn and should maintain slightly moist soil. The specific watering frequency can be adjusted according to the weather and soil moisture.
2. Control fertilization: Catharanthus roseus has reduced fertilizer requirements in autumn and can reduce the amount of fertilization appropriately. If leaf yellowing is observed, fertilization can be paused for a period.
3. Pay attention to ventilation: Although the temperature is suitable in autumn, it is necessary to avoid keeping Catharanthus roseus in a dark and humid environment for an extended period to prevent diseases.
4. Control diseases and pests: Regularly inspect Catharanthus roseus, and promptly control any diseases and pests to avoid affecting plant growth.
5. Adjust light exposure: The intensity of sunlight in autumn is moderate, and the light exposure time of Catharanthus roseus can be appropriately increased to promote plant growth.
6. Prune branches and leaves: Catharanthus roseus grows slowly in autumn, and appropriate pruning of weak and diseased branches and leaves can promote ventilation and light penetration.
The yellowing of Catharanthus roseus leaves in autumn is a common phenomenon. With the correct maintenance methods, Catharanthus roseus can still thrive in autumn. It is hoped that the introduction in this article can be helpful to you. It also reminds flower enthusiasts that during the maintenance process, attention should be paid to the growth habits of Catharanthus roseus and scientific management is necessary to make Catharanthus roseus bloom beautiful flowers in autumn.