As long as the organic matter particle size is not too small, and the amendment is thoroughly incorporated, clay soils are improved by 'aggregation'.
Loam - a soil mixture comprised of clay, sand and organic matter.
49. Mame - a term used in size classification of bonsai trees; this being a small bonsai.
50. Moyogi - a traditional Japanese bonsai style; also called informal upright.
Peat - Partly decomposed organic matter, originating from the decomposition ofvegetation in bogs, marshes or heathland. As an ingredient of potting soil, peatassists in moisture retention.
Partly decomposed organic matter; when it is used as an ingredient of
potting soil it assists in moisture retention.
A form of volcanic rock that is heat treated to develop a lightweight, coarse ...
Combining the right amount of organic matter (nutrients and moisture retention) and inorganic components (which provide for good drainage and root development).
When roots sit in waterlogged soil, they're like to rot and serve as a food source for soil scavengers that live off decaying organic matter. Choose plants that will thrive in the amount of light you can provide.
When it reaches our newly planted tree surrounded by loose organic matter, it is going to seep in until the planting hole is completely full of water.
They grow just below the layer of decomposing organic matter that makes up the first layer of soil (consisting of old leaves, broken branches, treetrunks etc, the humus layer).
Often provided by the use of dead organic matter/ Humus, the soil needs to be able to hold and retain sufficient quantities of water and nutrients for the tree to absorb.
In the wild, trees grow vigorously due to naturally evolving soil, gaining strength from decaying plant and other organic matter. In your pot, at home, you cannot replicate this as your bonsai's environment will be controlled.
Some trees like maples need a lot of moisture and so you will want to have a bit more organic matter in it.
to add organic matter and nutrients to the soil through the gradual breakdown of the mulch material
to repel insects ...
Well drained soil high in organic matter with soil pH between 5.0 and 6.5 should be used. The roots are superficial and fine, so drastic root pruning is not recommended, and it is best if only 10% of the roots are removed.
Repotting: Jades should be repotted into fast draining inorganic compost every 2-3 years. A mix of 75% inorganic matter (grit) and 25% organic (peat compost) is an ideal combination having good drainage whilst giving a degree of water retention.
Adding Soil: Adding the right soil is important when growing Japanese White Pines. Start with fertile workable soil that consists of a mixture of clay, sand, silt, and some organic matterial.
It follows from the foregoing that the soils used for bonsai culture should contain some sand, some organic matter, and some liquid retaining material. A good mix suitable for nearly all bonsai would be: ...
The organic matter, that makes them "bulky" in comparison to inorganic fertilisers, provides greater benefits than the simple nutrient analysis in the table suggests.
See also: Organic, Plant, Bonsai, Tree, Grow