When you think about it that way it’s no surprise they worship the Orange Pedo as the Second Coming of Christ. You’ve been Living A Wicked Life and have Gone Down The Path Of Sin, and so you deserve to be smited by the divine! But the divine never answered his prayers; you and all those other icky upstart ‘sinful people’ kept having a nice job and everything that he felt should be taken from you.

And then Trump comes along and grants his prayers with deportations and shootings and everything else he thinks you deserve. Is it any wonder he’s willing to suffer himself, as long as you ‘get what’s coming to you’?

That’s because you missed rhizomes, not roots. And if you keep cutting the remnants down after you get the main body of the plant out they’ll starve and die eventually, it just takes a few years.

Speaking as someone who has worked with bamboo for a living for over a decade, an ounce of maintenance is definitely worth a pound of cure. Setting up a proper root-pruning system and cutting the young rhizomes twice a year before they have a chance to spread is much easier than chasing it down after the fact.

Now, tropical timber clumping bamboo… those are tough to deal with once they’re mature. They’re like a boulder that grows lol.

It would probably need a fair bit of water, too, unless you’re in a more humid climate with summer rains. It is a grass after all.

Unless you planted a tropical clumper, the concrete wouldn’t take damage. A runner would probably pass under it and show up on the other side eventually though. You can stop that by cutting the rhizomes back in summer and fall (think of it like edging a lawn), but it sounds like that space might be too narrow to set that sort of system up well.

Actually it spreads very predictably (in either circles or a collection of straight lines) and if you want to get rid of it, just cut it to the ground and stumpgrind out the rhizomes, which are the only part that can spread the plant (and for most species are found in the top 12 inches of soil). If someone tells you that you need to get out every tiny root, they’re bullshitting you.