I am suggesting Phyllostachys Parvifolia as a bamboo for zones5-7
because it can get up to 4inch culms and 40ft tall and still reach
big sizes in cooler climates with it's impressive leaf hardiness. It also looks pretty.
Here's how mine has done since I bought it in the spring(2gallon plant)
showing the cold protection. It has about a dozen rhizomes reaching 5ft away
from the main clump so it will be interesting to see what comes up next spring.
Purchased May 2009
June 2009
September 2009
November 2009
December 2009
