Pumice

Pumice stone of medium grain size (Ø 3-6 mm) is a porous volcanic rock similar to a sponge and much lighter than other materials of volcanic origin (it even floats on water). The pumice is recommended to favor the engraftment of part and cuttings; it can be used pure or mixed with other substrates (10-20%). Excellent for all bonsa, it gives structure to the soil ensuring excellent moisture absorption and excellent drainage. The pumice can be used as it is on the bottom of the bonsai pot as a drainage layer.