When you use special Bonsai soil to grow in the tree. Garden - and potting soil as you used to not have bedding plants or potted plants the right properties to grow Bonsai good and healthy. Often these soils remain wet for too long, or they do not take well water. Also, there are trees that impose specific requirements on the ground mixture, such as, for example, the acidity of the soil. Different types of bonsai soil are often mixed with each other. This is done in order to make optimal use of the qualities of these different types of soil.