Why Are the Leaves of the Yew Turning Yellow? Cause Analysis and Solutions
The yew (Taxus) is a plant unique to China and can be grown in both northern and southern China. The high-grade bonsai made from it has extremely high ornamental value, but during cultivation, improper practices often cause its leaves to turn yellow. So what should be done when the yew's leaves turn yellow? Below are the solutions.
1. Improper watering
During the cultivation of the yew, if it is watered too much, the leaves will become dull and lusterless, and prolonged waterlogging may also cause root rot, leading to the death of the yew. If it lacks water for a long time, the yew's leaves will also dry out and turn yellow due to lack of water.
Solution: When watering, follow the principle of not watering until the soil is dry, and when watering, water thoroughly. If too much water has been given, loosen the soil to keep it appropriately permeable, or directly repot the plant.
2. Unreasonable lighting
Unreasonable lighting can also cause the yew's leaves to turn yellow. If it is exposed to sunlight for a long time, the yew's leaves will lack water and become yellow and wilted. When it lacks light, photosynthesis in the leaves weakens, and the roots, because of the lack of leaves, turn yellow and drop off.
Solution: If the yellow leaves are caused by excessive light, shade the plant promptly or move it indoors, then spray water on the leaves and wait for it to slowly recover. In general, place it on a balcony or outdoors in the morning and evening, and move it indoors at noon; this will meet its light requirements.
3. Unsuitable temperature
If the cultivation environment for the yew is too hot or too cold, it will have a certain impact. Too high a temperature will cause the leaves to lack water and become scorched yellow, while too low a temperature will also lead to insufficient nutrition and yellowing.
Solution: When the temperature is too high, find a way to cool it down. You can spray water mist to increase the humidity of the surrounding air and help lower the temperature. When the temperature is low, move the yew indoors and take good cold-proof and warmth-preserving measures.
4. Improper fertilizing
Improper fertilizing also has many effects on the growth of the yew. Too much or too little fertilizer will cause its leaves to turn yellow, especially for newly purchased yews, where the impact is even greater.
Solution: Pay attention to the method when fertilizing, and adopt the principle of applying thin fertilizer frequently. When the plant has been lacking fertilizer for a long time, apply nitrogen, phosphorus, and potassium fertilizers in time to ensure sufficient nutrition.
The above is an introduction to the causes of yellow leaves in yews and the solutions. We hope it can help you. To learn more related knowledge, please follow us.