IBUKI BONSAI SIEVED SUBSTRATE MIX FIRED AKADAMA 50% / PUMICE (BIMS) 50% MEDIUM size 4,5-5 mm
for mature and developed trees – balanced, to sustain advanced structure
MEDIUM size 4,5-5 mm (for medium Needle trees, pot below 40cm)
Fired Akadama MIX allows mature trees to be repotted much much less frequently. As the akadama is semi fired, it holds it’s particle structure for much longer yet roots are able to penetrate it as it slowly decomposes. That is what we all need plus great absorbtion of water and fertiliser that is then slowly released to the roots.
The substrate is sieved. Ready to use.
A few comments from bonsai pros about the product:
Mr Walter Pall:
Fired Akadama .. this is great news. As you and others know I have strong problems with akadama. The main reason is that it is decomposing. Especially in my climate where trees are exposed to frost for many weeks akadama creates big problmes. Often I get treeswhich are imported from Japan and have not been repotted for some time. They sit in full akadama which is hard like a birck and very difficutl to remove without really disturbing the root ball. I even go so far to call normal akadama dangerous. But I am fully aware of the positvie properties that akadama has. With your firing method this ctotally changes the situation. If akadama does not decompose anmore I would definitely use it and can only recommend it.
In addition I would like to raise another point. It is my conviction that old bnsnai are usully repotted too often. Yamadori trees can and should be undisturbed for ten to twenty years or more. When repotting old collected trees roots should not be cut at all if possible. In this situation the fact that akadama decomposes is unbearable. With nromal akadama one has to repot frequntly which is not my aim. So I suggest to use pumice or lava only for collected trees. Now I can extend this list to fired akadama.
i agree too in our climate use only akadama is not the best solution for old trees because akadama after max 3 winters become as a one mase so i also recomend mixes with Fired Akadama especialy for old trees. Thank you Mariusz for shearing a good information.