Posted: 05/08/2014 at 19:22
I can only assume that ground conditions play a major part in whether or not bamboos become thugs or not. It's a conversation that's been had many times on this forum but I have both aurea in nigra growing in my garden and had no problem with either. They must have been in 20 years now and still form a large clump. I do get the odd runner appear but either just break the growing tip off when it appears or mow over it. No problems for me at all.
If you are do want to grow bamboo and are concerned about spread then get a rubber dustbin, cut the bottom out and sink it in the ground like a bottomless pot. All the runners from my bamboo have been within about 6 inches of the surface so a decent bin will certainly contain them to a great extent.