What to Do When Peony Leaves Turn Yellow
Peonies, known as the classic flowers of national beauty, have困扰ed many horticulture enthusiasts with the issue of yellowing leaves. When the majestic peonies show signs of yellow leaves, it not only affects their ornamental value but may also indicate a health crisis for the plant. This article will systematically analyze the causes and countermeasures of yellowing leaves in peonies, helping you restore the peony's flourishing beauty.
Key Points of Water Management
Yellowing Characteristics Due to Water Deficiency
When peonies are chronically water deficient, they show overall yellowing, with the tips of old leaves drying up first. If the soil at a depth of 5cm is dry, it is necessary to water. It is recommended to use the immersion method to ensure thorough watering.
Solutions for Root Rot Caused by Waterlogging
In the rainy season, special attention should be paid to drainage, as waterlogging for more than 24 hours can lead to root asphyxiation. If waterlogging is detected, immediately loosen the soil, use a stick to create air holes around the soil ball, and replace the breathable substrate if necessary.
Scientific Nutrient Supply Solutions
Techniques to Repair Root Burn from Fertilizer Damage
The edges of new leaves turning brown is a typical symptom of fertilizer damage. Emergency treatment involves drenching with large amounts of water for three consecutive days, and in severe cases, replacing the soil while retaining 1/3 of the original soil to protect the roots, mixed with vermiculite to enhance buffering.
Precise Identification of Deficiency Symptoms
Yellowing between the veins is usually a sign of iron deficiency, while the entire leaf turning pale yellow indicates a lack of nitrogen. It is recommended to use chelated iron fertilizer foliar application, combined with matured cake fertilizer water once a month, and note to stop applying nitrogen fertilizers in autumn and winter.
Optimization Strategies for Environmental Factors
Insufficient light can lead to thin and yellow leaves, so ensure they receive 4 hours of direct sunlight daily. The soil pH value should be maintained between 6.5-7.5, and sulfur powder can be used to adjust acidity, while lime can improve alkaline soil.
By establishing a water log, creating a fertilization calendar, and systematically managing the plant, along with regular soil testing, you can fundamentally prevent yellowing leaves in peonies. When yellow leaves are detected, remember to diagnose before treating to avoid blind actions that may worsen the condition. By mastering these care essentials, you can certainly bring your peonies back to life.