Getting new jade plants started from an older plant can be an easy way to increase your houseplants without any extra cost. While many plants need special care or compounds for propagation, to restart a jade plant all you need is clean water and fresh soil, and the hardy nature of the plant will take care of the rest. Plan a day in early spring after you see new growth beginning on your existing jade for taking cuttings and starting them.
Use your pruners on the existing jade to clip off a branch 4 to 5 inches long. The cut should come just above a leaf set on the existing jade.
Fill a small bowl or jar with 1 inch of water. Pull off the bottom set of leaves from your cutting, and set the cutting into the water so the cut edge is submerged.
Set the bowl or jar in a sunny window, and leave the cutting in the water, refilling as necessary, for a few weeks until you see roots at least 1 inch long.
Add succulent potting soil to a small 4-inch pot when the cutting is ready, and wet the soil to make it damp. Plant the cutting into the center of the pot 1 inch deep and firm the soil around the cutting.
Place the pot in an area of your home where it will receive sunlight, and water weekly. Over the winter months, when the plant will naturally be dormant, stagger watering to every two or three weeks.