It looks a bit like green alkanet but there are a few things which look similar when young, such as a comfrey. Have you let any of them grow larger and flower? That would help ID it.
If it was just the one plants as opposed to an area of the plant I should think Bob's first suggestion is the one
Posts
If it was just the one plants as opposed to an area of the plant I should think Bob's first suggestion is the one
In the sticks near Peterborough