I figured this was going to be no easy task, but the city has told me either kill them or transplant them, since they are goring over the sidewalk when in full bloom. They are too beautiful to kill, and I just hate murdering helpless plants anyway. I have done a bit of digging, still yet to find the root ball, BUT have found lots of offspring about to shoot up. I could always transplant these little guys, and wait the 2-3 years for them to get to the same size. But who's that patient. Thanks for the tip on the tool, I will look for that. Will the root ball be like any other shrub, or will it be more spread out, since they're roots tend to grow horizontal and not down. Thanks!