Causes and treatment methods for yellow leaves of jade hanging bell
Jade hanging bell is a beautiful person in the succulent plant world, and its leaf yellowing problem often complicates growers. This article systematically analyzes the three major causes of yellow leaves and provides actionable solutions to help you quickly restore plant health. 1. Environmental factors cause the temperature of jade hanging bell yellow leaves to fluctuate sharply. The ideal growth temperature should be maintained between 15-25℃. When the summer temperature is>30℃, the plant starts its dormancy mechanism, and leaves develop dehydrated yellowing due to unbalanced transpiration; in winter, when the cell fluid freezes, causing frostbite yellowing, so special attention should be paid to the control of the temperature difference between day and night. 1.2 Imbalance of light intensity This plant has typical short-day characteristics, and scattered light for 3-5 hours a day can meet the demand. In summer, if strong light is exposed for more than 2 hours, the leaves will produce photooxidative damage, which is manifested as a compound symptom of macula + focal edge. It is recommended to use a sunshade net to filter 30% ultraviolet light. 2. Improper maintenance operations cause yellow leaves 2.1 Wrong watering mode adopts the "see dry and wet" method: 7 days per time in spring and autumn, 10 days per time in summer, and 15 days per time in winter. Continuous soil moisture above 60% will induce root rot, which will initially show yellowing and shedding of lower leaves. It is recommended to allocate granular soil (perlite accounting for ≥40%) to enhance drainage. 2.2 During the growth period of nutrient supply imbalance (March to May/September to November), nitrogen, phosphorus and potassium balanced fertilizers (NPK=10-10-10) were supplemented every month, and the concentration was controlled at 0.1%. Excessive fertilization will cause salt accumulation, which is manifested by scorched leaf margins accompanied by yellowing, which needs to be leached with clear water. 3. Response plan for pathological factors 3.1 Root health management Inspect the root system every spring when changing pots, prune the black and rotten parts, soak the roots in 800 times carbendazim solution for 30 minutes, and then dry the roots. Plants with severe yellow leaves can be cut and cut healthy branches to maintain micro-moisture in the substrate, and roots will be born for about 15 years.
By accurately controlling the four major elements of temperature, light, water and fertilizer, and regularly controlling pests and diseases, the jade hanging bell can keep its leaves brightly colored throughout the year. It is recommended to establish a maintenance log to record changes in environmental parameters and plant conditions, and gradually grasp their growth laws.