Posted: 28/08/2016 at 14:14
I'm going to mention "conifer" but don't hold your head
Taxus Standishii is an easy, upright and very tolerant evergreen tree. It is also delightfully attractive with its yellow summer foliage turning to olive in winter. There is also a dark, on the fwce of it, sombre looking variety that thrives in dark shade but this is a good foil to other plants as well as a good screening plant.
phormiums? These are evergreen grass like plants with superb colouring in their leaves.....from red to yellow.
Check out lonicera Baggesons Gold........yellow new growth on olive foliage and can be trimmed to any shape,,is evergreen and relatively fast growing.
cordylines too ....plain green to red and yellow variegated.
in fhe west of Ireland you have a similar climate to my own i think....mild at least?