Nick Maclaren wrote:

Assuming that it doesn't recover, I am wondering what I could put
there instead. It is a very sheltered position (for my garden, but
still gets down to -5 Celsius in a typical winter), faces south
west but is only 5' high by 8' wide.

Why the height restriction? it sounds like a cupboard with the door off ;o)

I would like something evergreen and flowering, but have difficulty
in thinking of any that would do well in that small a space.

Camelia perhaps.

--
William Tasso