Why Are the Leaves of the Epipremnum Aureum Wilting
As the "evergreen tree" in the indoor green plant world, the Epipremnum Aureum is deeply loved for its vigorous vitality. However, recently many plant enthusiasts have noticed that their Epipremnum Aureum leaves are becoming wilted and the leaf color is dull. This seemingly simple phenomenon actually hides a survival alarm from the plant. This article will deeply analyze the five key causes, helping you accurately diagnose the root cause of the disease.
I. Light Imbalance Causes Metabolic Disorders
1.1 Symptoms of Long-term Shading
The leaves of the Epipremnum Aureum show overall wilt, with new leaves significantly smaller than normal size, and internode lengthening forming a "stretching" phenomenon. It is recommended to receive 3 hours of soft morning light every day, and a纱帘 with 40% light transmission can be used to filter strong light.
1.2 Response to Extreme Light Environments
When the intensity of UV rays at noon in summer exceeds 2000μW/cm², leaves will show brown sunburn spots. The "three-zone rotation method" can be adopted, rotating the plant between bright scattered light areas, semi-shaded areas, and fully shaded areas every 10 days.
II. Temperature Fluctuations Affect Physiological Functions
When the ambient temperature is lower than 12°C, the cell membrane permeability of the Epipremnum Aureum increases, leading to electrolyte leakage, which manifests as sudden leaf drooping. It is recommended to maintain a constant temperature of 18-25°C in winter, and a mini greenhouse can be formed at night by covering with a transparent plastic bag.
III. Root Space Competition
3.1 Identification and Treatment of Weeds
Common weeds with developed roots such as Eulalia and Oxalis are often found on the soil surface, and their fine roots will entangle the main roots of the Epipremnum Aureum. It is recommended to conduct a "deep turning inspection" monthly, using tweezers to thoroughly remove all weed roots within a 5cm soil layer.
3.2 Scientific Fertilization Plan
Immediately after removing weeds, supplement with a balanced slow-release fertilizer (N-P-K=15-15-15), adding 2g of fertilizer per liter of soil, and combining with microbial agents to promote nutrient absorption.
IV. Core Techniques for Water Management
Adopt the "three-look watering method": first, look at the depth of the surface soil cracks reaching 2cm, second, estimate the weight of the flowerpot being 1/3 lighter, and third, observe the leaves slightly softening. In summer, the "soak pot补水 method" can be used, placing the flowerpot in a water basin to soak for 15 minutes and then draining.
V. Hidden Impact of Air Circulation
In a closed environment where the CO2 concentration is below 400ppm, the photosynthetic efficiency of the Epipremnum Aureum decreases by 50%. It is recommended to open windows for ventilation twice a day, each for 30 minutes, or install a mini circulation fan to maintain air circulation.
Through systematic diagnosis and precise intervention, 90% of the wilted leaf problems can be improved within 7-10 days. It is recommended to establish a maintenance log, recording key data such as light duration and watering frequency, and gradually mastering the growth rhythm of the Epipremnum Aureum. After the plant recovers vitality, you can try to convert to hydroponics, exploring more ornamental possibilities.