I use either Wood's rooting homone or Dip n Grow. You can mix it at various strengths for soft or hardwoods.

I typically use dip and grow but I've been told the gel is the new best thing, it clings to the base and doesn't leach off.

I've tried several of the gels with limited success,but Dip'n Grow almost always works.

I used the Clonex gel and had wonderful results.. Out of 6 things I attempted to root this fall, 4 of them rooted and within 2 weeks..