Calathea lancifolia, or commonly known as Rattlesnake Plant is a wonderfully showy houseplant. It has upright, lance-shaped leaves with long wavy edges that form in clumps, spreading slowly over time. The leaves are variegated with dark green strokes on a pale green background. The undersides are a burgundy red and velvety to the touch. Light and Water As with most variegated plants, Calathea need plenty of diffused light however direct sunlight will cause the leaves to fade and lose their markings. They can tolerate some degree of shade, but the better the light conditions, the more you will be rewarded by fine foliage. Experiment in your home to find the perfect spot for your plant. Calathea must always be kept in damp soil, but definitely do not allow the plant to sit in water or in very wet soil. Think little and often as a watering policy. Avoid draughts and ensure the plant has reasonable ventilation. High humidity levels are a must. Stand on a wet pebble tray to improve humidity and mist frequently. Pop it in the shower room or kitchen from time to time to give an extra boost.