Posted: 21/10/2013 at 10:56
hello boozysuzy - first let me say that my vertical garden is terraced into the rockface, and the soil where it exists is mainly schist so much of what grows is low growing - all the sedums do well, euphorbia myrsinites (from seed) does well, houseleeks of course. Of the salvias the real toughy is the purple leaved herb one. I also have bears breeches (acanthus mollis, I think), cyanara (giant thistle or cardoon) which may need staking against our vicious occasional winds, passionflower, iris of course, and then in shrubs phygelius and phlomis (both thepink one and the yellow) - sorry, not sure of the exact varieties and arbutus unedo (the strawberry tree), neflier....and pinks. Not sure if this will help you - my planting has developed by trial and error and much is from cuttings and seed collected along the way.
do you have any other suggestions?