This is probably the coolest thing I ever did see, you must have some super soil to bring a bamboo cane back to life. I can tell you that there roots grow like grass roots thin and fairly deep. They will compete for space. I wouldn't know what to suggest for the best.
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.