One of my better decisions. When the garage floor needed to be re-paved, I asked the contractors to leave two rectangular holes in the apron. They looked at me a bit askance, but did as I asked. Three years later, my Blaze climbing roses are doing splendidly. I don’t think I have room to build a trellis across the top, which is too bad, but they still make me pretty happy. Hopefully the neighbors traveling through what is otherwise a rather pedestrian back alley enjoy them too. Thanks to Jed for the trellises that hold them up!
Note: I have neither watered nor fed them — this is what they do all on their own. The most I do is prune off / tie up wandering canes once a season.