Drainage layer aggregates are jumbo particles that provide expedited drainage in the lowest section of a plant container. This speed the drainage process when placed beneath your normal potting soil. This potting method is common among the bonsai community, especially in Japan.
We offer two types of drainage layer material. Bonsai Block(calcined clay) Drainage Layer. The material ranges in size from 3/8ths to 1 inch. Most poular Pumice Drainage Layer . This material ranges from 3/8ths to 5/8ths of an inch. Click a product for more details