12,5 L. Akadama 1-5 mm Ibaraki, hard

This package size is also falsely offered with 14 liters of content, but in fact only about 12.5 liters are included.
Akadama is a Japanese clay granulate with some very good properties for our bonsai. It is partly pure, but mostly used in soil mixtures.

With Akadama the bonsai has a good to very good stability.
Akadama is very air permeable.
Optimum drainage properties, thus never root rot due to waterlogging. However, it may be necessary to water more often.
Good buffering against pH fluctuations in the soil.
Shows by brightening when drying, that must be poured again.
Akadama hard is very dimensionally stable for a long time.

When fertilizing is to be noted:

The greater the proportion of Akadama (as with gravel, lava, pumice etc) in the soil mixture, the more attention is paid to fertilization.
Mineral fertilizers, dissolved in water, are washed out faster. Therefore, it should be fertilized more often with a lower dosage.
Solid organic fertilizers (e.g., BioGold) have been well proven. Due to the slow release of nutrients, over-fertilization is rare.

We had Akadama in grains:

1 - 2 mm (especially for small bonsai such as Shohin or as a topcoat)
1 - 5 mm (mostly used grain, pure or in a mixture)
5 - 10 mm (as a drainage layer for small and medium bonsai or for large bonsai as a substrate)
10 - 20 mm (Drainage layer for larger pots)

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