What to pay attention to when repotting Epipremnum aureum
As a star variety of indoor green plants, Epipremnum aureum is loved for its strong vitality and air purification ability. Regular repotting is a key step for its healthy growth, as it can both supplement nutrients and improve the root environment. Mastering the scientific method of repotting and soil mixing can keep Epipremnum aureum's leaves glossy and maintain its waterfall-like form.
Three Core Points for Repotting Epipremnum aureum
1. Timing Selection and Temperature Control
It is recommended to perform repotting operations in the spring, when the temperature is between 18-25°C, as the plant is in the growing period, which can increase the rate of adaptation by 50%. In southern regions, it can be done in March to April, and in the north, it can be postponed to April to May. Avoid repotting in winter when the temperature is below 10°C or in summer when it is above 30°C, as large temperature differences can cause the leaves to wilt.
2. Pot Selection and Size Specifications
The diameter of the new pot should be 3-5cm larger than the original pot, and the height should be increased by 2-3cm. Terra cotta pots have the best breathability, while plastic pots need to ensure there are ≥4 drainage holes. For trailing Epipremnum aureum, it is recommended to choose wide and shallow pots, and for columnar shapes, deep筒 pots are needed. A 2cm thick layer of ceramsite at the bottom of the pot can enhance drainage.
3. Root Treatment and Disinfection Maintenance
Keep 1/3 of the original soil to protect the roots and cut off fibrous roots that are more than half the length of the main root. Black decayed roots must be thoroughly removed, and after treatment, soak in a 1000-fold solution of carbendazim for 20 minutes. After pruning, let it sit in the shade to dry for 1 hour before transplanting to reduce the risk of infection.
Analysis of Special Soil Formula for Epipremnum aureum
Golden Ratio for Substrate Preparation
Recommended formula: decomposed leaf soil (40%) + perlite (30%) + coconut bran (20%) + vermiculite (10%). The humus content should be 35% or higher, with a pH value controlled between 5.5-6.5. Add 5g of slow-release fertilizer granules per liter of substrate, which can maintain a 3-month fertilizing effect.
Soil Disinfection Process
Use the high-temperature steam sterilization method: spread the prepared substrate in a 3cm thick layer and treat with 100°C steam for 15 minutes. Or use a 0.1% potassium permanganate solution to water thoroughly, cover with plastic wrap and seal for 48 hours before drying in the sun. After treatment, the soil should be spread out in a shaded place and left to sit for 3 days to restore microbial activity.
After scientific repotting, new buds of Epipremnum aureum can be seen within 1 month, and the roots can fill the new pot within 3 months. It is recommended to change the potting soil every 1-2 years, combined with regular pot rotation maintenance, which can cultivate an ornamental Epipremnum aureum waterfall up to 2 meters long. Mastering these key technical details will keep your Epipremnum aureum always vibrant.