Vinca minor, also known as periwinkle or myrtle, is a trailing evergreen with shiny, dark green leaves and blue or purple blooms that appear in April and May. Although vinca minor makes a lovely ground cover in the home landscape, the plant can also be planted to effectively control erosion on steep hillsides. Vinca minor is easily propagated by taking stem cuttings in October.
Fill a pot with commercial potting soil. Be sure the pot has a drainage hole in the bottom. Dampen the potting soil with a spray bottle.
Use a sharp knife or razor blade to cut a 4-inch to 6-inch stem from a healthy vinca minor plant. Make the cut just below a leaf or a bud. Pinch the leaves from the bottom half of the stem. For the best chance of success, take several cuttings in case some don't root.
Use a small stick to make a hole in the damp potting mixture. Plant the stem in the hole, being careful not to scrape off rooting hormone as you plant. Several stems can be planted in the same container.
Place the container in a sheltered, shady area. Spray the potting mixture whenever it feels dry to the touch. The potting mixture should never be allowed to dry out.
Leave the container in the sheltered area until the cuttings take root. Then plant each cutting in an individual 4-inch to 6-inch pot so the vinca plants have room to grow larger.
Plant the vinca minor plants in the ground after all danger of frost has passed.