Growing Root stock from a cutting.
I have a standard roses whose root stock is sprouting, I have had a couple of attempts of trying to grow the root stock by taking cuttings. But alas I can seem to get the cuttings to grow. Does anyone one have any suggestions on how to do this. What I have tried is cutting a bit of the sprouting root stock off, and dipping it in rooting hormone and then planting it in potting mix, but the cuttings just wilt and die.