Posted: 27/05/2014 at 20:52
Thank you 'Fidget Bones' and 'Nut Cutlet' too. It has been bothering me not knowing what it is and I didn't know where to start. Random google descriptions did not help, but I know I could rely on the gardening world forum - I don't know why I didn't come here sooner.
I really have no idea how to remove it from my Rosemary patch which contaminating the herbs. I prune the Rosemary back and dug as much of the Comfrey root out as I could...but the little bugger came back to spite me this spring! haha! I have a fondness for the bees, who seem to swarm this species, so I guess I'll just have to tolerate it and prune it back when it starts to go wild!