Redwood bark
From BonsaiWIKI
Redwood bark is similar to Fir bark, but comes from California Redwood trees. Redwood has a lot of tannins in, and is very decay resistant. The tannins may not agree with the roots of some trees, so be wary.
| 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 |
