After the branches are elongated, control moisture and increase ventilation to adapt them to the natural environment. After the dormancy period in autumn, put a big flowerpot, the soil should be loose and fertile, and the drainage should be good, so as to facilitate preliminary shaping and pruning; Top dressing every 20 days or so after the emergence of new buds in the next spring, to keep the soil moist but not too dry, grow with the growth and expand the root system through economic intertillage. After the basic shaping, the bonsai pot will be replaced during the dormancy period, and then it will enter the conventional shaping, pruning and maintenance.