Can anyone tell me what this plant is? It was cut down to the ground in the spring and then it got HUGE.. I have no idea what it is.. these flowers are purple, not blue. I guess these flowers turn into "pods" after they have flowered.. it's like a giant bush maybe? I'm not sure??
https://i276.photobucket.com/albums/kk10/nettieaw/Flowers/What_Is_this.jpg