Prepare a planter for the candy corn vine cutting before taking it. Fill a 4-inch plastic planter with equal measures of neutral compost and perlite. Dampen the mixture with 1/4 cup water. Form a 2-inch-deep hole in the center of the compost.
Select a 4-inch-long portion of semiripe wood from a mature candy corn vine in early summer. Look for a cutting with green flesh near the tip, hardened wood at the base and several sets of leaves. Avoid cuttings with active flowers.
Make an angled cut 4 inches from the tip of the candy corn vine just below a set of leaves. Pluck off and discard the lowest set of leaves to expose the nodes.
Dip the end of the candy corn vine cutting into 0.3-percent IBA rooting hormone liquid. Let the excess hormone drip off the cutting.
Insert the candy corn vine cutting into the preformed hole in the compost mixture. Tamp the soil closed around the base of the cutting.
Set the planter where it will receive very bright light for at least seven hours a day. Keep the temperature between 65 and 70 degrees Fahrenheit at all times for the fastest rooting.
Mist the foliage daily or keep the planter in a room with naturally high humidity, such as in a well-lighted bathroom or kitchen. Dampen the soil using a plant mister whenever it feels dry 1/2 inch below the surface.
Check for roots in three weeks. Keep the candy corn vine cutting in its original container for two weeks after rooting, then transfer it to a larger container filled with potting soil or outdoors in a permanent bed.