Corkscrew vines can be multiplied through stem cuttings or by layering. To propagate through stem cuttings, select a healthy stem and cut a 6-8 inch piece below a node. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it consistently moist. Place the pot in a bright, indirect light location and wait for roots to form, which usually takes 2-4 weeks. To propagate through layering, select a low-growing branch and strip the leaves from a 6-8 inch section of the stem. Bury this section of the stem in soil, leaving the top portion sticking out. Water the soil regularly and wait for roots to form, which usually takes 2-4 weeks. Once roots have formed, cut the new plant away from the parent plant and repot it.