I have just removed a poorly-performing hydrangea from the spot you can see to the left of the pyracantha. As you can see, this south-facing border is backed by leylandii and I think a lack of moisture will have been part of the problem.....plants tend to grow outwards here, rather than up. I'd like to replace it with a shrub which has an upright habit, will show up against the leylandii and (preferably) be evergreen. I'm considering a purple-leaved berberis. What do other people think? (We live in Dorset, so the climate is (usually!) mild.