Over the last few years, I've stuck hundreds of grape cuttings into the ground, because that's supposedly how to root them. I got a total of about three rooted plants out of all that effort.
This spring I cut the canes and stuck them into a
bucket of water. I changed the water about once a week. About half of the canes produced viable
roots. Woo Hoo! That's much better odds for me than sticking them into soil. A friend used rooting hormone on some canes that I gave her and she got almost complete rooting in jars of water. Perhaps if I do this again, I'll cut some willow twigs to add to the bucket. Perhaps they'll share some rooting hormone with the grapes.