Tuberous Perennial: Heat and cold tolerant. Resistant to deer, disease, heat, insects and mildew. Has large heart-shaped rich purple-black leaves with ruffled edges over deep plum stems. Border, container, water, and houseplant. Arching, tall, upright growth habit. Height: 4-5 feet. Exposure: sun/part shade. Water: moist. USDA Z-9.