What Causes the Money Tree to Turn Yellow
The money tree, as a common indoor ornamental plant, has many people troubled by the yellowing of its leaves. This article systematically analyzes the causes of yellow leaves, combining professional horticultural experience to reveal a complete solution from root care to environmental regulation.
I. Yellowing Leaves Caused by Root Damage
1.1 Identifying Symptoms of Root Rot Due to Waterlogging
When the soil remains moist for more than 3 days, the leaf tips first show yellow spots with a water-stained appearance, and the base of the stem becomes soft. Checking the roots reveals brown rotting tissue accompanied by a sour smell.
1.2 Steps for Scientific Rescue
Immediately remove the pot and expose the roots to air, prune the black rotting roots to healthy parts, disinfect with carbendazim, and then use a breathable matrix of珍珠岩:蛭石=3:1. Strictly control water within 3 weeks after rescue, maintaining an environmental temperature of 25-28℃.
II. Yellowing Phenomena Caused by Nutritional Imbalance
2.1 Typical Symptoms of Fertilizer Burn
New and old leaves show yellowing with burned edges, and white salt霜结晶 can be seen on the surface of the soil. The root tips turn black and curl, and the overall growth of the plant stops.
2.2 Fertilizer Emergency Plan
Use the immersion pot method to rinse the matrix 3 times consecutively, and add 5% activated carbon when repotting to absorb excess fertilizer. During the recovery period, use a 1000x solution of kelp extract to water the roots, supplementing trace elements every 10 days.
III. Strategies for Dealing with Improper Light Management
3.1 Symptoms of Sunburn Damage
Leaves show irregular brown spots, and the temperature of the leaf surface明显升高. The sunny side shows severe yellowing, often accompanied by curled and deformed leaves.
3.2 Techniques for Light Regulation
In the summer, set up a shade net to filter 50% of the strong light, and in the winter, ensure 4 hours of direct sunlight every day. Use a lux meter to monitor and control the light intensity within the ideal range of 800-15000 lux.
IV. Advanced Maintenance Tips
Regularly rotate the pot to ensure even light exposure, use pH test strips to check the soil pH (optimal 6.0-6.5) every month. Combine leaf cleaning with wiping the front and back of the leaves with a damp cloth weekly to enhance photosynthesis efficiency. It is recommended to perform preventive fungicide treatment in spring and autumn using a biological preparation of Bacillus subtilis.
By systematically investigating environmental factors and combining scientific diagnostic methods, most yellowing leaf issues can be effectively controlled. The key is to establish a regular observation and recording system, master the plant's growth rhythm, to keep the money tree healthy and green.