Prepare the growing mix for the ivy cuttings. Add equal amounts of peat moss and potting soil to a 4-inch pot until 1 inch from the top. Drill a drainage hole through the pot's base if necessary.
Moisten the mix until excess flows out through the drainage holes. Insert a pencil into the middle of the potted mix to make room for the cutting as you plant it. Prepare several pots since you need one for each cutting.
Take a 4- to 6-inch-long cutting from a healthy climbing ivy plant, using sterilized pruning scissors. Take the cutting form the top of the plant to ensure it is new growth.
Remove the foliage from the lower half of the cutting before wrapping it in a moist paper towel to keep it from drying. Repeat the process of taking a few more cuttings to make up for those that fail to root.
Dip the bare end of each cutting into a bowl of rooting hormone until completely covered. Lift the covered end and tap it on the side of the bowl to remove excess powder.
Lower the hormone powder-covered end of a cutting into the planting hole in a pot. Firm the soil around the base of the cutting so it stands on its own.
Insert three stakes around the edges of each pot. Place the pot in a clear plastic bag to provide the cutting humidity and accelerate the rooting process. Ensure the bag does not touch the ivy foliage. Seal the opening of the bag with a twist tie and place near a warm window with indirect but bright light.
Inspect the ivy cuttings regularly to ensure the growing mix remains evenly moist at all times. Tug the cutting after three to four weeks and check for any resistance that indicates the development of roots. Other signs of rooting include new leaf growth or root growth through the drainage holes. Remove the bag and acclimate the cuttings to warmer light slowly for a few weeks before transplanting to the desired planting location.