From what I can gather, it appears that a large amount of industry in Japan relies (or did at some time) on the long flowering cycle causing continual growth of the bamboo stalks, only further complicated by the cloning process that likely cuts from the same plants.
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Presumably, the seeds from the fruits from the last generation. Though they would certainly take a bit of time.
From what I can gather, it appears that a large amount of industry in Japan relies (or did at some time) on the long flowering cycle causing continual growth of the bamboo stalks, only further complicated by the cloning process that likely cuts from the same plants.