One plant grown for medicinal purposes is the aloe plant, specifically the aloe vera variety, also known as the medicine plant. The juice is extracted from the leaves and is used to help soothe and heal insect bites, minor cuts and burns, as well as other skin conditions, such as acne. No matter which kind of aloe plant you have, it is usually grown indoors in containers, but can live outdoors during warm weather. Aloes are easily propagated through division, at which time cutting the roots is sometimes necessary for success.
Allow the plant soil to dry out before taking the aloe out of its container. Tap the sides of the pot to remove the plant.
Remove the soil gently, revealing the roots.
Separate the roots with your fingers to divide your aloe plant. The plant will be made up of the mother plant and the smaller offsets to the side, which can be divided. Separate them so each section has some roots still attached.
Cut off the roots with a pair of hand clippers or sharp knife, rather than tearing them, if they're so intertwined that you can't separate them with your hands. If any roots are significantly longer than the rest, you can cut them back to the same length as the others. Wait one to two days before replanting and then wait another week before watering.