In message , Broadback
writes
Any ideas as to what to place in the middle of a 12 foot diameter round
bed. It needs to be rabbit resistant, I would like a bit of a wow
factor and interest all year round. The bed is in full sun.

I don't know about the rabbit resistance, but you could consider a
coppiced Paulownia. Of course that doesn't give you any winter interest.
--
Stewart Robert Hinsley