A jasmine vine is a woody evergreen vine that is propagated by taking hardwood cuttings during the spring dormant season before bud growth. Hardwood cuttings are taken from mature stems of the parent plant and root easily in the proper growing conditions. Jasmine vine hardwood cuttings may take two to three months to establish a strong root structure because the plant is propagated while in the dormant stage.
Disinfect propagation tools prior to use by washing them in a solution of nine parts water and one part bleach. Let the tools air-dry prior to using. Take hardwood jasmine cuttings during the spring dormant season prior to bud break by cutting a section of stem that is 6 to 8 inches in length with a pruning clipper. Make an angle cut 3/16 inch above the top bud and a horizontal cut 6 inches below this bud. Dip the bottom stem edge into rooting hormone and gently tap to remove excess. Keep the cutting in a moist location to prevent the cut edges from drying while preparing the rooting tray.
Create a rooting medium by mixing equal parts of water moistened peat moss and perlite. Fill a plastic rooting tray with the moistened medium and carefully stick each cutting into the soil at a depth of one-half to two-thirds the length of the stem. Make sure there are no leaves stuck into the soil. Gently pack the soil around the cutting to hold the stem in place. Lightly water the rooting medium to firm the soil around the cutting. Place a clear plastic cover over the rooting tray to keep the humidity and moisture level high during the rooting process.
Place the tray in a warm location with indirect sunlight. Monitor the cuttings for root growth by gently pulling upward to see if there is resistance from root growth. Transplant the cuttings once several roots have reached a length of 1/2 to 1 inch in length. Fill a 4-inch plastic growing pot with high quality potting soil and gently plant the rooted cutting. Keep the soil moist but not wet. Harden the cuttings off prior to planting them outdoors by gradually introducing them to the outdoor climate. Increase the length of time they are outdoors each week until the cuttings have sufficient root growth to be transplanted to an outdoor planting bed.