Pacific Northwest Gardening: ID This Stray?, 1 by growin

growin wrote:
I do like the stuff. If you mow most bamboo, it will be a runner 'cause ya just cut its head off. I'd run if you try and mow me over too. P. edulis is a Timber Bamoo which clumps and when its old enough, sends out a runner for another clump. If you would have left that clump, it would have produced a nice clump without being mowed. P. nigra is a clumper but will send out a runner when its old enough. Ever thought of using a bamboo barrier to keep it in the spot you want it? A raised bed can work too, even a large container.