Here's the ones I chopped off, it's been like a week and new growth is already showing.
I think you can see how they were crowding out the red hot pokers..
These last 2 pics are one that I tossed down a few years ago... Haven't had the heart to kill it, but no place to put it... It seems fine even tho it's sideways, and growing from a wad of clay smaller than a baseball