Posted: 28/02/2014 at 17:59
I've lost both Phormiums and Pittosporums in hard winters. Easy, evergreen and OK in shade for the 2 matching ones could be Euonymus. There are gold and green or white and green and they can be left loose or clipped as you like.
There are loads of perennials, rather depends on your taste. But how much sun does it get, a few hours a day or only one or two?
Plants that are OK in shade - Brunnera Jack Frost, Alchemilla Mollis, Autumn Anemones (there are some lovely new ones that are smaller and not as thuggish as some older ones), astilbes (if it's damp enough), heucheras, some of the hardy geraniums, campanulas (partial shade), epimediums, lamium, euphorbias.
Campanula muralis could tumble down the wall.