How to start clematis from cuttings?
Start Clematis From Cuttings
Take cuttings, strip leaves from an inch or so, dip in rooting hormone (0.3 percent) and plant in well-draining soil. Mist cuttings. Takes about 21 days or so to root. You don't say where you live but I would keep in filtered shade to root making sure they do not get too dry.