Japanese red maple is deeply loved by flower lovers because of its beautiful tree shape, especially its crimson leaves. This brightly colored plant is also an excellent choice for home bonsai. Its crimson leaves are available all year round, and its red leaves can only be seen in winter, and can be seen in other three seasons. How to raise Japanese red maple bonsai? Let's take a look at its maintenance method with Uncle Gardener. 1. Soil: Japanese red maple is more suitable to grow in well-drained soil, and soft soil is very beneficial to root respiration and growth. The soil prepared for it is best to be slightly acidic, and try not to use alkaline soil. 2. Watering: Water as much as possible according to the principle of seeing dry and seeing wet. It has a certain drought tolerance. It doesn't matter if you water it less at ordinary times, but it's best not to let the flowerpot accumulate water. 3. Sunshine: Give it plenty of light during maintenance. Under good lighting conditions, its leaves will be more vivid. If it is noon in summer, it is best to shade properly to avoid the sun exposing the leaves. 4. Ventilation: Suitable for well-ventilated places, and try to put it in places with certain ventilation conditions. If you put it indoors, you can put it by the window or balcony. 5. Temperature: The most suitable temperature for its growth is about 20, and it has certain cold resistance. But in winter, it is best to move indoors for maintenance, and the temperature should be kept at least above 0, so that the winter can be safe. 6. Pruning: Pruning is needed during growth. Pruning is mainly to cut off diseased branches and dead branches, which can avoid infecting other branches and make the plants healthier. Secondly, it can have better plant shape and improve ornamental value. 7. Pests and diseases: It is inevitable that there will be various problems in maintenance, among which powdery mildew is more common. This disease is usually cured in a place with poor ventilation, which requires timely prevention and drug treatment.