No...probably just eating worms..

Triple Crown is invasive in my opinion...almost impossible to kill (trust me, i've tried fro the last 3 years, and its come back every time)...i dig out the roots, yet still there is enough there to resprout.

My Triple Crowns did the same. Large Primocanes from the center and some from last yrs growth of canes along the ground. I have cut the tall canes back to 7 ft. It is like I have several new plants in the bed. Can it get too thick?
Paul

It shouldn't be coming up from the roots unless the roots have been damaged or exposed somehow. It's very suspicious that nothing is coming up from the crown. Are you sure you didn't get a mislabeled plant? Maybe one of the erect Arkansas varieties?

Mine have sent up a few weak suckers from the roots this year. But the main clumps are still sending up strong new shoots.