Aloe plants belong to a very large and diverse group of succulents. They are believed to be indigenous to Africa, although for centuries they have been cultivated in tropical locales throughout the world, including Latin America and parts of Arabia. According to the American Cancer Society, the most common and widely recognized species of aloe is the aloe vera variety. Aloe vera is typically grown indoors since it cannot tolerate cold temperatures.
Cut off a leaf of an aloe vera plant using a sharp knife. Cut the leaf as close to the plant's main stem as possible. Cut off one leaf for each plant you wish to propagate.
Place the aloe vera cuttings onto a paper towel and let them callous (dry out) for about seven days before planting.
Mix together in a large bowl, or basin, equal amounts of peat moss and fine sand. If you don't have any peat moss, mix together 1 part sieved compost, 1 part garden loam and 2 parts fine sand.
Sterilize the growing medium. Spread it out on a cookie sheet and bake it for 1 hour with the oven set to a temperature of 300 degrees F. Let the growing medium completely cool off before proceeding.
Scoop the pre-mixed growing medium into 4-inch pots. If you are reusing 4-inch pots, make sure they have been sterilized (see Tips). Pack the growing medium down firmly in each pot using the bottom of a 2-inch pot or the backside of a metal spoon. Pour about 1 to 2 cups of water into each of the 4-inch pots to dampen the growing medium.
Poke planting holes in the center of each of the 4-inch pots using a plastic or metal table knife. Each hole should be approximately 1 to 1 1/2 inches deep and the same width as each of the aloe vera cuttings.
Measure out approximately 1 tbsp. of rooting hormone powder into a small bowl. Dip approximately 1 inch of the cut end of each of the aloe vera cuttings into the hormone powder. Discard any leftover hormone powder.
Insert one aloe vera cutting into each hole. Push the growing medium in and around the cutting.
Transfer the 4-inch pots into a brightly lit area in your home, but keep them out of direct sunlight. The temperature range should be between 60 and 75 degrees F. Keep the aloe vera cuttings moist, but do not allow the growing medium to become soggy. The cuttings will take root and start growing in five to six weeks.