What to Do When orchid Leaves Turn Yellow
Answering netizens' questions about what to do when orchid leaves turn yellow, and discussing the causes of yellow leaves and solutions for this common issue, can certainly provide you with helpful information. Let's find out together!
Orchids, also known as Chinese Orchids, Spring Orchids, grass orchids, fragrant orchids, national fragrance, fragrant ancestors, and the fairy of the empty valley, are a general term for plants in the Orchidaceae family. If you find that the leaves of your orchid are turning yellow, it may be due to excessive light, insufficient light, too little watering, insufficient fertilization, or overly concentrated fertilization. It is necessary to adjust lighting, watering, fertilization, and handle the roots according to different causes.
Methods to improve yellowing orchid leaves:
1. Trim yellow leaves
Solution: If the number of yellow leaves is small and the area is limited, you can first avoid trimming and focus on enhanced care and management, waiting for the leaves to gradually turn green. If there are many yellow leaves over a large area, along with drying, drooping, and wilted conditions, it may be due to a bacterial infection. You should disinfect the scissors and cut off the yellow leaves along with the petioles, then burn them after cutting, and spray the plant with carbendazim for disinfection and sterilization.
2. Manage lighting
Yellowing leaves may also be caused by improper lighting. When the plant is exposed to strong direct sunlight, the leaves can be burned and turn yellow, or if the orchid is kept in a dim environment for a long time, the leaves lack light to synthesize chlorophyll and will fade and turn yellow.
Solution: After trimming the yellow leaves, place the plant in a room with ample scattered light, and move it outside to receive sunlight when the light is weak.
3. Water appropriately
When orchids require a lot of water, insufficient watering can easily lead to plant dehydration, causing the leaves to not only turn yellow but also possibly wither.
Solution: Water promptly, following the principle of "water when dry and stop when wet." Water when the topsoil is dry, and stop when water seeps out from the bottom of the pot.
4. Repair roots and replant
Too much watering and overly concentrated fertilization can damage the roots, leading to root rot. Rotten roots cannot supply enough water and nutrients to the leaves, causing them to become dehydrated and nutrient-deficient, resulting in yellow leaves.
Solution: dig the roots out of the soil, trim away the rotten, withered, and dense roots, apply carbendazim to the wounds for disinfection, then let them dry in a well-ventilated area until the wounds shrink. After that, change the soil and replant.
5. Reduce fertilization
Long-term excessive fertilization or the use of high-concentration fertilizers can easily lead to yellowing of orchid leaves.
Solution: Reduce the amount of fertilizer during fertilization and water once the day after fertilization to dilute the fertilizer.
6. Eliminate diseases
Orchids may also have yellow leaves when they encounter diseases.
Solution: Observe the condition of the orchid promptly, and when pests or diseases appear, analyze the cause of the disease and use appropriate medications scientifically.
The above information provides specific details on what to do when orchid leaves turn yellow and the causes and solutions for yellowing leaves, for everyone's reference and action.