What to Do If the Epipremnum aureum Is Frosted
As a popular indoor green plant, Epipremnum aureum is highly susceptible to frost damage in winter, such as yellowing leaves and wilted branches. When frost damage is detected, it is necessary to take scientific and systematic rehabilitation measures, which require precise control of environmental factors and the correct maintenance techniques. This article will provide a detailed analysis of the golden rescue plan for Epipremnum aureum after frost damage through four key dimensions.
Scientific Warming Operation System
Temperature Gradient Control
Move the frosted Epipremnum aureum to a buffer area of 10-15°C for 12 hours, and then gradually raise it to a stable environment of 18-22°C. Use a thermometer to monitor in real-time and avoid a temperature difference greater than 5°C/hour. You can create a transitional space by using a thermal-insulating bag or setting up a thermal-insulating screen.
Heat Source Positioning
Keep it more than 1.5 meters away from direct heat sources such as radiators and use air conditioning warm air for indirect warming. At night, you can cover it with a transparent thermal-insulating film to maintain stable temperature. Be especially careful to avoid areas with alternating hot and cold drafts.
Precise Treatment of Damaged Parts
Branch Pruning Standards
Use pruners disinfected with alcohol, making an oblique cut 2mm from the base of the frost-injured leaves. Segmentally prune the semi-transparent stems, retaining the healthy green parts. Each pruning should not exceed 40% of the total leaf amount, and complete it in 2-3 sessions.
Root Rescue Plan
When inspecting out of the pot, rinse the roots with warm water at 25°C. Cut the black rot roots 1cm from the healthy connection point and soak them in carbendazim solution for 30 minutes before repotting in new soil. Retain at least 1/3 of the original soil to protect the roots.
Light, Water, and Temperature Synergistic Management
Light Compensation Strategy
Provide 4-6 hours of scattered light daily and use a 40% shade cloth to filter strong light. You can also use plant growth lights to extend 1 hour of light in the morning and evening, maintaining a light intensity of 5000-8000 lux.
Water Control Plan
Use the siphon method for watering: place the pot on a water-filled saucer, allowing continuous water supply through the capillary action of a cotton rope. Spray the leaves with 25°C atomized water containing brassinolide, twice a day for one week.
Epipremnum aureum that has undergone systematic care usually shows new sprouts in 2-3 weeks. Fertilization should be paused during the recovery period, with a monthly application of seaweed extract to promote root regeneration. It is recommended to set up a thermometer and hygrometer to monitor continuously, maintaining the substrate moisture ≤40% and air humidity ≥60% during winter, allowing the Epipremnum aureum to revive.