bamboo id and how to propagate?
I have clumping bamboo, which I'm really pleased with. It is well behaved. The leaves provide dappled screening and are nice looking. Right now, the tassels are out, and the bees are loving it.
I would like to id this bamboo and I'm wondering if it's possible to propagate it, as I would like to have it in other areas. I know that the spreading bamboo does so by sending out rizones, and they can quickly become a problem.
Does the clumping bamboo spread by air layering like blackberries, or do they have seeds (after flowering)? The clumps are so tight, I can't believe you can divide them, or root them from cuttings.
I've browsed a couple of the great sites that are referenced in this forum, but I have a problem in narrowing down the id. All I can say is it is clumping, and the stalks (culms?) are about 3/4" in diameter. The height is about 8'. The leaves are heart shaped with a squared off bottom and a pointy tip, dark green on top, pale green on the bottom. The leaves are alternate (i.e. every 4" or so, they occur on the other side.
I'm located in zone 6b, so this one can take cold winters.
Thanks for any help you could provide to help me narrow down the id and to answer my question re propagation.