1、 Soil replacement time

It needs to change the soil once a year during maintenance, which can be carried out in spring and autumn. Autumn should be between September and October. The temperature is appropriate and can adapt to the new environment faster. Not too early or too late. Too early, too high temperature and too late low temperature will frostbite the plant. In addition, spring should be between April and may to avoid the high temperature environment in summer, otherwise it will affect normal growth

2、 Soil replacement method

1. Pot removal and root repair: cut off the water for a period of time before changing the soil. When the soil is slightly dry, turn the flowerpot upside down, so as to facilitate pot removal and reduce the damage to the root system. After that, the root system should be trimmed, and the old roots and rotten roots should be trimmed off to facilitate better absorption of nutrients

2. Prepare soil: prepare suitable basin soil with good air permeability and high porosity and fertility. You can mix rotten leaf soil, sawdust and garden soil together. Before putting it into the basin, lay a layer of broken stones on the basin bottom to improve drainage

3. Basin filling: the basin can be filled after the soil is ready. Pay attention to cover all the roots, and leave space for later management. After planting, don't rush to water. After three or four days, replenish water appropriately, and you can recover in about a week