Pumice
From BonsaiWIKI
Pumice is a volcanic ash used as a component of bonsai soil. Pumice varys in color and grade. Most have some ability to absorb water yet retain a pore space that promotes good root growth. Kanuma and Hyuga are both types of Japanese pumice.
| Bonsai Soil Components |
| Inorganics: Shale | Sand | Haydite | Turface | Ceramis | Oil-Dri | Decomposed Granite | Kitty litter |
| Volcanic: Pumice | Perlite | Vermiculite | Lava |
| Japanese Soils: Kanuma | Akadama | Hyuga |
| Organics: Fir bark | Redwood bark | Peat Moss | Coir | Muck | Charcoal | Compost | Field soil | Potting soil |
