Stem Cutting: In early spring, take a philodendron cutting, use sharp pruners to remove a cutting from a tip off the vine. Cut at least 5-6 inches of stem to propagate with aerial root or nodes attached. Place in a vase with water to root. Change the water each week with filtered, bottled, or tap water sitting at least 24 hours. After 3-4 weeks, check to make sure the stem has 1-2 inch, well-formed roots. If so, it's time to plant. *Fill a small container with drainage holes (too large of a container for the cutting will make it challenging to regulate watering needs) using an indoor well-draining potting mix. Mix a little rooting hormone into the soil. Poke a hole in the soil with a pencil. Then, place the cutting in the hole and tamp the soil down around it. Water the plant and keep it in medium to bright indirect sunlight. After 4-6 weeks, the roots should establish. Division: Divide the philodendron in the early spring when emerging from dormancy. Pull from the container and cut through the roots with a sharp knife or pruners. Repot in a rich, indoor potting soil mix. Use a container 2 inches bigger than the root ball with drainage and is deep enough for the roots to grow. Place the roots at the same level as the previous pot adding soil at the bottom if necessary. Set it in bright, indirect sunlight and water. Check the moisture and humidity each day and add misting to keep the soil moist while the roots establish. After 6-8 weeks, roots will begin to form.