I have taken on an extra plot. Technically from 1st April, but the previous tenant is moving and was happy for me to get started a bit early. I was recently forking out a very old strawberry bed when I came across the tubers shown in the photograph. I suspect artichoke tubers, but is it possible to tell if they are Jerusalem or Globe? Or could they be something else I have not thought of? All top growth has gone, killed off I guess by the recent cold weather so no help there.