It propagates with air roots, the temperature is maintained at 18-25 ℃, and the time is from March to April in spring. Determine the air root from the plant, then cut it from the position near the base, cut 3-4 knots of air root, and put it aside for drying. Prepare the flowerpot and soil. The soil should be well ventilated and drained. Bury the treated branches in the pot soil, water them properly to keep moisture, and then move them to the new pot soil after germination.