Are there any more giving plants? They are thriving next to the dry, stony environs of the fence, in a north facing plot. The blooms have smothered the fence and give a wonderful feeling of intimacy to the garden.
I will prune them immediately after flowering: I was quite radical with Rubens last year because it was becoming rather too rampant, and it didn't do any harm. This year it's a case of training Grandiflora (in its first year) to mingle a bit more with Rubens, and to prevent them both taking over the obelisk where a honeysuckle tends to get overwhelmed by them.