Ostrich, I gave up on 'Bobo' about three years on with them, had several and they just weren't vigorous and even after one of the better winters, they just kept pining away, out they went, I think they're much better suited to zone 5 instead! Our climate has been soooo erratic all over the place, seemingly more than ever! When I acquired 'QF' and 'LQF' upon their introduction, both had done fantastic for several years with very little dieback, though have suffered more severely of late.
I was eyeing 'Quick Fire Fab', had seen at Super Store, though specimens were not in the best of condition to warrant purchase.
Q