QuestionsHow to growFlowersRock Garden FlowersName of deep blue flower 0 Vote Up Vote Down Val Maguire asked 17 years ago Gerry, I’m a new member. Name of a deep blue creeper found early summer growing over old walls etc.? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago This sounds like the wall bellflower, Campanula portenschlagiana, which used to be called Campanula muralis, muralis means ‘of walls’. This is easy to grow in a rockery or similar, by paths, walls etc. in well-drained soil in sunshine.