yeah i know,
This is simple supermarket soil(1,49Euro) i flushed to clear old nutes, then i additive the Herbs.
I think this comes from the Tea,liquid manure for weeks i make pasturage sude for root stimulating(auxin).
But I did not think that something like this happens.
I must kill him i think so,this is pity but needfull u says this bamboo make deeply roots.