We have a very small, think postage stamp small, terraced garden, the top of which has been fenced in to make safe for small people. It is ugly, horrible brick walls on ground and second tier and ugly railings at top. I am thinking of painting the brick walls and growing something up them and trying to grow something around the railings, but I am no gardener, so clueless as to what would work. Garden is south facing but overshadowed by houses up above, as garden is built into side of hill. It also seems very boggy. Any ideas as to what could cover railings relatively quickly? TIA