L A S B O N S A I
BONSAI SOIL
SOIL 1 : DECIDUOUS TREES
-
TURFACE
70%
- PEARLITE or
PUMICE 20%
-
PEAT
10%
SOIL
2
:
EVERGREEN TREES
-
TURFACE
50%
- PEARLITE or
PUMICE 30%
-
PEAT
20%
+ CHARCOAL add
5%
Turface is the brand name for a type of fired, calcinated clay for use as soil conditioners and top dressings for play fields.
Perlite is a lightweight, volcanic glass that has been expanded through heat to create a white, porous structure. Perlite is often used as a component of soils designed for seedlings and cuttings. As a component of bonsai soil, it is a poor choice because it is so light that it nearly floats out of the pot when watered. Pumice is a more common choice for bonsai applications.
Peat retains water and reduces leaching of nutrients in the soil.
Horticultural charcoal is a porous carbon, used as a natural filter to help absorb impurities that could be toxic to roots and to improve soil drainage