What to Do When the Leaves of Guanyin Bamboo Turn Yellow
Guanyin bamboo, a common indoor ornamental green plant, has its leaf yellowing problem troubling many plant enthusiasts. This article systematically analyzes the top 5 maintenance misconceptions, combined with actual symptom photos, and guides you step by step in diagnosing and treating, to restore the lush vitality of your Guanyin bamboo.
One, Key Points of Water Management
1.1 Symptoms and Treatment of Overwatering
New leaves appear light yellow and lackluster, while old leaves remain normal but the stems shrink, indicating a risk of waterlogging and root rot. Immediate actions should be taken to air-dry the roots: ① Clean the compacted soil ② Trim the blackened roots ③ Place in a well-ventilated area for 2-3 days ④ Replace with a breathable ceramic pot and granular soil.
1.2 Characteristics of Yellow Leaves Due to Lack of Water and Techniques for Rehydration
When the leaf edges turn brown and leaves fall, progressive rehydration should be adopted: water thoroughly on the first day to settle the roots, spray the leaves on the second day, and apply water-retaining vermiculite on the third day. It is recommended to use the "finger test": insert the index finger into the soil 2 cm deep, and water when dry.
Two, Golden Rules for Light Adjustment
2.1 Repair Plan for Sunburn Damage
When brown burn spots appear on the leaves, immediately move them to a north-facing windowsill and use a shade net. During the recovery period, spray a Vitamin B12 solution (at a 1:500 ratio), twice a week to enhance stress resistance.
2.2 Remedial Measures for Light Deficiency Yellowing
When long-term shade leads to chlorophyll loss, use a step-by-step lighting method: the first week, 2 hours of morning light per day, the second week, increase to 4 hours, and the third week, stabilize at 6 hours of diffused light. It is recommended to pair with a full-spectrum plant light, positioned 50 cm away from the plant.
Three, Advanced Guide to Scientific Fertilization
When leaf tips turn brown due to excessive fertilization, the "three flushes and three irrigations" emergency method can be adopted: flush the potting soil with water for 3 consecutive days, and alternately water with rapeseed extract (1:1500) and EM bacteria solution. During the growing season, follow the principle of "frequent application of light fertilizer," and it is recommended to use a leaf-type liquid fertilizer with N-P-K=9-3-6, applied once every two weeks.
By accurately diagnosing the cause of yellow leaves and taking corresponding treatment measures, combined with daily maintenance monitoring of temperature and humidity (keeping it at 18-28°C and 60% humidity), your Guanyin bamboo will gradually recover to a healthy state within 4-6 weeks. Regularly rotate the pot to ensure even light exposure, and change the nutrient soil every spring to effectively prevent yellow leaves from recurring.