Weed Shrub Identification please.
This shrub keeps popping up in my garden in France. Even when very young it is hard to pull up. Does anyone know what it is, please? The one in the photo went unnoticed for a while and is now quite big, a metre tall. I tried to dig it up end of winter but it was tough so I cut it down and this is what has grown since.
Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.