Posted: 14/05/2014 at 20:56
I would gently cut away the branches that are flapping around, remove the plants/weeds at the base, give it some rose food or well rotted horse manure. In the Autumn, please plant it in a larger pot, with Fish Blood and Bonemeal mixed in with the fresh compost, place the new container on a large saucer, so that it can suck up some water when you are not there. I love this way of growing roses, I have 2 half standards by the front door and they are much admired.
Bear in mind that a rose that is confined like this does need feeding, dead-heading it will ensure many blooms.