Aloe vera is a perennial, succulent plant (meaning its leaves hold large quantities of water). The plant can grow up to 4 feet tall, and its tough, fleshy, spearlike leaves can grow up to 36 inches long. The clear, thick gel found in the inner part of the leaf is most commonly used for minor cuts and burns. "Mount Sinai"
To keep your aloe plant happy, stick with dry conditions (it can even tolerate infrequent watering) and bright, indirect light (try a sunny windowsill, for example) "Good Housekeeping"