Will the pothos revive after freezing in the next year?
In the cold winter, the yellowing and wilting of pothos leaves always worry plant lovers. After encountering extreme low temperatures, can this tough, leafy plant regain its vitality? This article will delve into a complete solution for treating pothos frost damage, guiding you through the golden rules of plant revival.
Criteria for Judging the Level of Pothos Frost Damage
Characteristics of Mild Frost Injury
When the temperature drops to 5°C or below, the surface leaves first show brown spots, and the leaf edges curl and droop. At this time, the stems remain green, and the branches are elastic when lightly pinched. The roots in the soil are healthy and white.
Signs of Severe Frost Injury
Persistent sub-zero temperatures can cause all leaves to carbonize and fall off, with the main stem showing transparent frostbite marks. If the roots turn black and rot, and the branches separate from the roots when lightly pulled, it indicates that the plant has died completely.
Detailed Explanation of Triple Treatment Techniques
Root Repair Techniques
For plants with 30% healthy roots, the "Three-Step Revitalization Technique" is needed: ① cut off the black, rotting roots ② soak in carbendazim solution for disinfection ③ repot in sterile, nutritious soil.
Cutting Revival Plan
Select stem sections with aerial roots, use a mixture of perlite and vermiculite (1:1) as the growing medium, and maintain a constant temperature of 25°C. Spraying gibberellic acid solution every 3 days can increase the success rate of root formation by 80%.
Environmental Control Points
During the treatment period, maintain a stable temperature of 18-25°C, combined with 60% shading net to filter strong light. Use the bottom watering method, keeping the air humidity above 70% to prevent secondary leaf dehydration.
Building a Frost Damage Prevention System
Build a thermal insulation shed in advance at the end of autumn and cover it with double-layer non-woven fabric at night. Use potassium dihydrogen phosphate solution for cold resistance training, and spraying the leaves every half month can increase the tolerance of cell ice point by 2-3°C.
By accurately determining the extent of frost injury and combining it with scientific treatment measures, even severely frozen pothos can be revived. Mastering the core technologies of temperature control and root care will ensure your pothos survives the winter safely every year, staying lush and green.