How to propagate pothos in water during winter
Pothos, as a popular indoor ornamental leaf plant, its water propagation method is loved by many due to its simplicity. The low temperature environment in winter poses a challenge to the survival rate of water propagation. Mastering key techniques such as temperature control and stem treatment can help pothos successfully take root and sprout in the cold season, creating a vibrant green space.
Key Techniques for Propagating Pothos in Water in Winter
Precise Temperature Control Solution
Maintaining a constant temperature above 15℃ is crucial for the survival of pothos in water propagation. When using air conditioning/heating to control the room temperature, it is recommended to place a heating pad at the bottom of the container to prevent a sudden drop in water temperature. In the northern regions, the hydroponic bottle can be placed in areas that continuously generate heat, such as near routers or refrigerator ventilation openings, while in the south, the container can be wrapped with plastic film to create a miniature greenhouse.
Criteria for Selecting Active Stems
Select robust stems 8-12cm long with aerial roots, and retain 2 full leaves to enhance photosynthetic efficiency. After making a 45° diagonal cut to increase the water absorption area, disinfect the cut with an alcohol swab and let it dry in a shaded place for 2 hours to form a protective film, preventing the loss of sap and subsequent black rot.
Building an Intelligent Cutting System
A transparent glass container combined with a foam float is the best combination, as it allows observation of root growth and secures the stems. When watering, submerge the stems one-third of their length, and change the water every 3 days with 23℃ water, adding 3 drops of hydrogen peroxide to inhibit algae growth. It is recommended to use rainwater or tap water that has been standing for 48 hours to avoid damaging the tender roots with chlorine.
Post-Propagation Management of Pothos in Water
White root nodes can be seen 15 days after propagation. At this time, add diluted HB101 vitality factor at 500 times to promote root development. Maintain 4 hours of scattered light every day, and using a grow light can enhance leaf luster. When the water roots exceed 5cm, they can be transplanted to nutrient soil or continue to be cultured in water.
With precise temperature control, scientific stem selection, and intelligent care, the success rate of pothos water propagation in winter can reach over 90%. By mastering the timing for root observation and the rhythm of nutrient supplementation, even gardening beginners can cultivate pothos with well-developed roots and glossy leaves, achieving a四季常青 (four-seasons green) indoor green plant display.