posted 3 days ago
I grow three kinds of bamboo in BC near the coast, but I have enough land that I have fewer worries of it taking over (not to mention, the geese will eat the shoots, as will the bunnies and the deer, so there's a certain amount of unpaid help keeping it controlled).
One patch, P nigra, is in front of the house where containment is more important. I dug a pit designed to encourage any of the runners to come to the surface, and lined it with heavy pond liner. That was years ago, and so far it hasn't escaped.
A friend's neighbor planted a much larger bamboo variety, and used a concrete containment that had straight sides and it escaped and had to be taken out as it was threatening building foundations. Since one of those foundations was my friend's, she was unfortunately very panicky about the situation, so I was unable to try and rescue some of the plant - it was *not* a "bad" plant - just a wrong plant in a wrong location. I hate to think what the owner paid for it... sigh...
My first bamboo, P. nigra, was a chunk dug up from a friend's backyard. I knew very little at the time, but still managed to keep it alive. I have since taken several chunks from my patch and given it to other friends. Now I know that it's important to take a runner with a growing point, some roots to support it, and a couple of attached culms. The culms provide the strength for the runner to survive.
Bamboo does have a learning curve and requires knowledge to work cooperatively with it. Keeping it cut back rather than letting it to grow too tightly has helped me manage mine a lot. And, of course, the older culms I cut out, have no end of uses around my homestead!