Im not much of a gardener, but I want to start to learn a little more. I have a block wall in my backyard that looks very bland. I would like to grow some vines on it but I have some specifics in mind. I would like the vines to be low maintenance, and green all year long. We live in Southern California so its pretty dry and sunny most of the year. Also, our block wall is pretty smooth as its like a cinder block. What type of vines would work best for this?