I'm in desperate need of advice. I've been working on cleaning up my very small urban backyard, most of which is a redbrick patio, although I have two raised beds to work with. I had some scraggly overgrown bushes removed and it seems very spacious. I want to start redoing the L shaped bed. Right now, there are two small rose bushes that I would like to keep, but I'm not sure what will work with them. Would hydrangea and lilies be ok on the shadier part? I've attached my pitiful attempt at a graphic. The bed is 4 feet wide and 16 feet and 18 feet long.