Surprisingly, Haworthias are nocturnal plants, doing most of their growing at night. They are also known to flower, albeit infrequently. The flowers are delicate, small, and tubular in shape, adding another layer of charm to these already enchanting plants. Some interesting species include Haworthia 'Truncate', recognized by its windowed leaf tips, and the popular Haworthia cooperi, presenting a delightful 'bubble' effect.