Posted: 26/09/2014 at 18:49
A quick search on Crocus yields one evergreen, fast-growing climber for a south- or west-facing location:
the cup and saucer plant.
Going for "semi-evergreen" gets another 7:
blue passion flower
purple passion flower
Copper Beauty honeysuckle
Halls Prolific honeysuckle
Chilean potato tree
What I can't promise about them is ... well, anything, really. What Crocus don't bother to specify about them is what kind of climbers they are. I know the lonicera will twine up just about anything, as will akebia and, of course, bindweed. My jasmine (Jasminum beesianum), however, doesn't. It'll twine up itself or a wire, and probably up the akebia once they meet and mingle, but it won't twine up a trellis. How a climber will deal with a conifer remains to be seen. I know the akebia ties itself in knots on the thorny bramble stems. Really. Knots. It keeps finding another bit and trying to twine round it. One very confused plant. I don't know why pyracantha's listed as a climber at all. It's a tree. If you prune it a lot, it's a bush.
Three options so far. Let's seek more. Playing with "how much sun" gets no more plants. Going for "quite quick-growing" brings in the clematis and akebia.
Gold Flame / American Beauty honeysuckle
Dropmore Scarlet / Scarlet Trumpet honeysuckle
Clematis florida sieboldiana
That last one looks good. It says it grows through shrubs and other climbers. It's also a bit sensitive to frost, apparently, so no good at all up here, but you may be able to give it a suitable home. Nice, long flowering period, too. My akebia flowers came and went while the hyacinths were out, so I have no idea what they smell like.
Allowing deciduous plants makes for a very long list. Here: http://crocus.co.uk/plants/_/climbers/plcid.15/vid.8/numitems.100/