Plant Propagation: Layering Vines
Start the process at the beginning of the growing season. Locate one or more long, healthy and pliable stems. Make a notch about 9 inches from the tips of the vine. Carefully bend the stem over, bury the notched portion in the ground, and leave the top 6 inches of the stem above the ground. Anchor with a metal wicket or stone.
Or set a pot filled with a well-drained potting mix next to the plant. Bury the notched portion of the stem in this container. Anchor the vine in place. Water the cutting thoroughly and throughout the growing season to encourage roots to form. The parent plant will continue to supply water and nutrients while the new roots are forming.
Disconnect the layer from the parent plant. Dig and plant your rooted layer in a new location in fall or the following spring.
A bit more information: Look for natural layering to occur in your garden. Vines and long stems that lay upon the soil often root. Separate these from the parent plant and move to a new desirable location.