Jade plants, succulent members of the crassula family, are popular houseplants for good reason. Their exotic appearance belies ease of care and maintenance. Jades like plenty of indirect light, but don't tolerate wet feet. Other than that, these plants are fairly undemanding and readily propagate in the spring by stem cuttings. While single leaves can be rooted similarly, it takes much longer to grow specimen sized plants from them.
Choose an unblemished 3- to 4-inch-long stem on a healthy jade plant. Cut just below a stem joint with a clean, sharp knife.
Set the cutting on a paper towel in a warm, dry spot for one to two weeks to allow the cut stem to dry and form a callous. This will discourage rotting and disease.
Combine equal parts potting soil and vermiculite or perlite in a 3-inch clay pot. Moisten the lower ½ inch of the stem cutting and dip it into rooting hormone. Plant the cutting and water just enough to barely dampen the soil surface. Don't supply any added humidity, which will rot the cutting.
Set the cutting in a warm, brightly lit location out of direct sun. The temperature should be about 75 degrees F. The top of your refrigerator or above a hot water heater is a good choice.
Water only when the upper ¼ inch of the rooting mix has dried. Your jade cutting should root in two to four 4 weeks and enjoy any warm, brightly lit room in your home.