is an evergreen perennial succulent, with a rosette of fleshy leaves growing up to 40 centimetres (16 in) in diameter. is cultivated as an ornamental plant for rock gardens and as a potted plant. In cooler temperate regions, it must be kept indoors for the winter, as it does not tolerate temperatures of −4 °C (25 °F) and below. Echeveria are popular low growing ornamental garden plants. Although they are fairly drought tolerant, they will become more spectacular with regular deep watering and fertilising. The hybrids tend to be less tolerant of frost and shade. In temperate climates, most species will lose their lower leaves in winter and become 'leggy' and less attractive. 'Ileene' is a hybrid of E. pulidonis x E. chihuahuaensis. Yellow flowers on shepherds crook stalks.