Too late now, because I'm not taking them out of the buckets. I doubled the cloth, so I'm hoping that it works. If that doesn't stop the roots, I don't know what will. The smallest wire mesh I could find would have done no good. But, maybe they make finer mesh. I just can't find anything finer where I live, unless I use window screen. I can't see that stopping them since the window screen isn't very strong. I moved them a long ways away from the daylilies, so if they escape, it will be much easier to deal with it. I also need to bury the buckets at some point, but haven't decided where I'll leave them at. I probably need larger buckets as well. But for now, I'm happy.