How to choose the cultivation materials of Wei Zi bonsai?

Material selection of Wei Zi bonsai: The cultivated soil requires loam with rich organic matter and good drainage, 5 parts of humus soil or sandy soil (wet mud sand), 2 parts of burnt soil (fire clay) and 0/part of coal cake ash.

Attention to watering: The basin soil should be kept moist in spring and winter, and watered once in the morning and evening in summer and autumn. In case of drought and high temperature, the watering frequency can be increased appropriately every day, and the water should be watered with river water, well water, rainwater and tap water stored for 2-3 days.