I have a lilac that's about 7 foot - quite upright growth. Am thinking of planting a climbing rose - 'Claire Austin' (grows to about 8 foot) to grow through it. I know it's standard to grow clematis and such like through a lilac, but what about a rose. Will it be too heavy? If roses are planted to grow up anything it's apple trees (or that's what you read about) so I'm wondering what other people think.