Could be a garden throw out or even bird sown.
No interactions present.
Looks like Berberis thunbergii 'Atropurpurea' to me.
David J Trevan
I thought it looked different, I don't know how I have missed seeing it before, but this area does get overgrown with brambles and bracken - well that's another one to visit. :)
Lat/Lng: 53.63143157959, -2.6465458869934
OS grid ref: SD573151