Originally Posted by Gibson
A lot of people talk about "bamboo" as if it is one plant, and indeed often refer to "it" as a shrub or tree.....
There are actually nearly 1500 species of Bamboo, and they are grasses....
Whilst some are vigorous and reproduce readily at the rhizome others are slow to increase, or produce such a tight clumping arrangement of culms as to be virtually impossible to divide at all.
Also bear in mind that even the most vigorous varieties are still far slower to reproduce commercially than most seed or cutting raised plants, and take up considerably more space in a nursery.
I would certainly agree that the issue has to do with species. Splitting may be inexpensive but it's also more difficult to succeed in doing. Especially if you haven't done it before, which it sounds like this person hasn't. Shop around a little more and look for the heartiest species.