Causes of yellowing of Phnom Penh orchid leaves The maintenance method of yellowing of Phnom Penh orchid leaves The phnom Penh orchid leaves are deeply loved by flower friends because of its unique Phnom Penh leaves and elegant posture. During the maintenance process, the yellowing of Phnom Penh orchid leaves is often troubled by novice flower friends. This article will reveal the reasons for yellowing of Phnom Penh orchid leaves and the maintenance methods to help you easily raise Phnom Penh orchid. Reasons for yellowing of Phnom Penh orchid leaves 1. Improper water management Phnom Penh orchid requires high water, but too much watering will cause root rot, which in turn causes yellowing of the leaves. Insufficient watering will also cause the leaves to lose vitality and become yellow.
2. Insufficient light Phnom Penh orchids like to scatter light. If they are in a dark environment for a long time, their leaves will turn yellow due to lack of light.
3. Soil problems The soil is too hardened or poorly drained, which will cause difficulty breathing at the roots, which in turn affects the growth of leaves and makes them yellow.
4. Improper application of fertilizer. Excessive application of fertilizer or application of fertilizer that is not suitable for Phnom Penh orchid will cause yellowing of the leaves.
5. Pests and insect pests invade Phnom Penh orchids are vulnerable to pests and diseases, such as leaf spot diseases, aphids, etc. These pests and diseases can cause yellowing of leaves. 1. Water management Phnom Penh orchids prefer a humid environment, but attention should be paid to the frequency of watering. Generally, it is necessary to keep the soil slightly moist to avoid water accumulation. When the summer is high, the number of watering can be increased appropriately; When the winter is low, reduce the frequency of watering.
2. Lighting management Place Phnom Penh orchids in places with sufficient scattered light to avoid direct sunlight. If there is insufficient light, the placement position can be adjusted appropriately.
3. Soil management Select soil with good air permeability and strong drainage, such as legular soil, perlite, etc., and regularly loosen the soil to keep the soil loose.
4. Fertilizer application During the period when Phnom Penh orchid is growing vigorously, compound fertilizer or organic fertilizer should be applied once a month. When fertilizing, be careful not to let the fertilizer come into contact with the leaves to avoid burning the leaves.
5. Regularly inspect Phnom Penh orchids for pest and disease prevention and control, and treat pests and diseases found in a timely manner. Pesticides and fungicides can be used to control and control, while keeping the environment clean.
There are many reasons for yellowing of Phnom Penh orchid leaves, but as long as you master the correct maintenance methods, this problem can be easily solved. I hope this article can help you grow healthy and beautiful Phnom Penh orchid.
References: "Phnom Penh Orchid Conservation Manual", compiled by China Flower Association, 2018 edition.
"Guide to Indoor Plant Conservation", Li Ming, 2019 edition.