This succulent plant can be grown quickly and looks great on a windowsill. As it lacks the nutrients necessary to maintain its metabolic processes, the plant can become weak and droopy over time. With over 80 species of different plants under its belt, Genus Haworthia is classified as one of the biggest Genus that offers botanists and gardeners a wide range of succulents to study and explore. You can either choose one plant species or a combination of them. Haworthia can be grown indoors or outside. It is highly adaptable. You can grow the string of bananas outdoors in succulent gardens.