Properties of plant materials

In recent years, the team of raising orchids is expanding day by day, and the ways and methods of planting orchids are different in different countries. orchid people show their special powers in the use of plant materials, and all kinds of plant materials no longer say much, but remain the same. The plants that are too hard have good air permeability but are not good for the growth of orchid roots, too many edges and corners, and the over-fine plants are easy to harden, and the air permeability is not good to use. all kinds of plants should have the performance of watering for three years. (song Mingyuan, Anhui)