There are over 250 species of Aloes in the world, mostly native to Africa. They range in size from little one inch miniatures to massive plant colonies consisting of hundreds of 2 foot diameter plants. The most commonly known is the Aloe barbadensis, better known as the Aloe Vera. All Aloes are semi tropical succulent plants, and may only be grown outdoors in areas where there is no chance of freezing (USDA zones 10 11). However, they make excellent house plants when they are given sufficient light. Container grown Aloe plants benefit from spending their summer outdoors. Older specimens may even bloom, producing a tall stock covered with bright colored coral flowers.