Cuttings are the simplest and quickest approach to propagate your impatiens walleriana. In May or June, place healthy, well-developed bushes in the shadow for a brief time. When the plant's shoots begin to stretch, cut off about 3-6 in (8-15 cm). Immerse them in water and wait till they root.After the bloom fades, a capsule fruit replaces it. Inside the capsule you can find a vast number of small seeds that can be stored for roughly eight years. To propagate your Busy Lizzie with seeds, do the following. Fill your container with peat-like soil mix. Water the soil thoroughly with hot water and let cool down. Then press the seeds into the substrate without covering them with soil. After that, stretch plastic wrap upon the container. Place the pot in a warm well-lit room with a temperature about 75 degrees F (23-24 degrees C) and wait till the seeds sprout. Avoid direct sunlight. After you see the shoots waking up, take off the cover and let sit. Don’t forget to sprinkle the soil if it starts to dry out. After 2-3 weeks the sprouts will be ready for individual repotting.