You can propagate a Monstera quite easily. During its growing season, cut the stem just above an existing leaf. Place the cutting in a jar of water, moist perlite, vermiculite, sphagnum moss, or soil. The plant will start to sprout roots within 10 to 20 days. Once you see the new plant's roots appear in the water, repot in the appropriate potting soil for the best performance of your new plant.