Aloe plants have been valued for thousands of years for their medicinal uses. Sap from the leaf is rubbed on burns and wounds to promote healing. The sap is also taken internally for a variety of symptoms. The Mayo Clinic recommends that a doctor or pharmacist be consulted before using aloe on children.
The best way to propagate aloe is by dividing the roots or removing a plant offset, according to Michigan State University Extension. However, if you don't want to wait for an offshoot or have only a leaf, aloe can be propagated from a leaf cutting.
Use a clean sharp knife to cut a leaf from the base of the aloe plant. Choose a healthy leaf that is at least 4 to 6 inches long.
Dry the leaf on a clean surface overnight. A thin skin should form over the cut to protect the plant and promote rooting.
Prepare a pot of rooting medium to receive the cutting. The Washington State University Extension Service recommends filling the pot with a mixture of equal parts of sand or vermiculite with peat moss. Moisten the mixture so that it is damp but not wet.
Dip the cut end of the leaf into rooting hormone prepared according to the package directions.
Insert the leaf into the rooting medium so that the cut end is buried along with half the leaf.
Water the rooting medium every 2 to 3 days to keep it moist until the plant roots.
Transplant the new plant into a growing container filled with potting mix after 4 to 6 weeks. The roots should be well developed at this time, according to the Washington State University Extension Service, and the new plant will begin to grow.