Perennial vinca, or blue periwinkle, is a ground vining plant. If left undisturbed, this shade-loving creeper will take over almost any area. Small plants will self-propagate in a few short years, through the creeping ground vines. The small blue flowers are prolific in the summer months. During the winter, the vinca vine will hold onto its leaves, providing a ground landscape of green during the colder months. Vinca can be propagated into other areas by taking cuttings and then rooting the small stems.
Clean the scissors thoroughly under hot soapy water. Rinse all soap from the cutting shears. This will aid in keeping down any disease that the scissor blades may transfer to the freshly cut vine.
Select the ends of a vinca vine that has at least 4 to 6 leaves along the vine's length.
Take up to 6 cuttings from the vinca vine in different areas of the plant. The vine should range from 6 to 8 inches long.
Remove the lower leaves from the vine. Any part of the vine that will reside underwater should have all leaves removed from the stem.
Dip the cut end of the vinca vine into the rooting hormone powder. This is optional but will increase the likelihood of the vinca vine rooting.
Fill the clear jar half full of clean tap water.
Place the vines into the jar. Allow the leaves of the vine to hold the cuttings upright. The leaves should be protruding from the top of the jar.
Set the jar on a windowsill, away from any direct sunlight. Rinse and refill the jar with clean water on a weekly basis. The vinca cuttings will be ready to plant once the stems are covered with roots that range in length from 3 to 4 inches long.