Not true. There are zone 5 clumping bamboo species as well as running
ones. For example, most of the fargesia species are listed as zones
5-8. I recommend the original poster do a little homework with Google,
or start he

http://www.bamboos.com/mountain%20bamboo.html

rus

In article .com,
"syzygy in ny" wrote:

In your climate zone, you're probably limited to the phyllostachys
genus.
P. nuda is supposed to be one of the most cold-hardy bamboos around,
and good eating, too.