Aloe vera is a medicinal plant. (But also a very attractive landscape plant.) It contains more than 75 active ingredients, including enzymes, amino acids, vitamins, and minerals, some of which could make it useful for treating diseases. Some people use aloe vera gel as a home remedy to treat burns and other skin conditions and heal wounds. Aloe juice is also promoted as a natural remedy for diabetes, heartburn, and inflammatory bowel syndrome (IBS). I have various sizes from $5 to $15. ($5 ones shown in photos)