A few years ago, I bought a Blaze climbing rose. The guy at the nursery told me it was on its own root stock. It has sent up stems with 7 leaves for the past two years but it still continued to flower great. This year it has the nice Blaze flowers on the lower part of the stem but up near the top (it's on an arbor) it has pannicles of white Hydrangea type flowers. What gives? Did the aliens take over? Actually the white pannicles look nice with the red flowers. I was wondering if this rose was grafted and what it was grafted to. Any guesses? Sorry I don't have a picture to post. Marg