Nope, its not a comfrey. It appears to be wild mallow (Mallow sylvestris), commonly known by all sorts of names in the UK - common mallow being one of them. Weed plant, pops up on its own. I can't see inside the flower, but it should be striped with a deeper pink to some degree. It usually grows fairly upright, but can be flattened by heavy rain or being caught up in the undergrowth (in this case, grass) or by animals.

Nope, its not a comfrey. It appears to be wild mallow, Malva sylvestris, commonly known by all sorts of names in the UK - common mallow being one of them. Weed plant, pops up on its own. I can't see inside the flower, but it should be striped with a deeper pink to some degree. It usually grows fairly upright, but can be flattened by heavy rain or being caught up in the undergrowth (in this case, grass) or by animals.