How to Propagate Perennial Periwinkles

Division

• 1

  Divide periwinkle in the fall after flowering stops. This timing ensures that the energy of the plant will go to the roots. Divide soon enough so the plants have four to six weeks before the ground freezes to establish themselves.

• 2

  Water plants two to three days prior to dividing. Try to divide on an overcast day or when at least one day of rain is expected. These conditions prevent stress on the plant.

• 3

  Prepare the area in which new plants will be planted. Add compost and loosen soil.

• 4

  Prune plants to 6 inches from the ground before digging.

• 5

  Dig down on all four sides of the division using a pointed shovel. Place the shovel under it and pry a clump up.

• 6

  Separate by pulling the roots apart. Re-plant the divisions immediately at the same depth they were originally.

Cuttings

• 7

  Fill empty containers with potting soil. Moisten the soil with water right before cuttings are taken.

• 8

  Dip scissors or knife in rubbing alcohol prior to making cuts to prevent spreading disease or infection.

• 9

  Cut a 6-inch piece of periwinkle right below a node, or place where leaves grow on the stem. Remove the bottom two or three sets of leaves.

• 10

  Dip the defoliated end in rooting hormone and tap to remove any excess. Punch a hole in the potting soil in the container with a pencil. Insert the bottom of the cutting in so at least two nodes are covered. Firm the cutting into soil.

• 11

  Place pot in indirect, bright light and water to keep evenly moist. When new growth is observed, plant the periwinkle outside.