Colocasia 'Black Coral' ppafTotally new introduction from the University of Hawaii setting a new standard for black elephant ears. Dark black, glossy leaves with blue veins on 4' perennial clump. The leaves eventually reach 20" wide by 30" long. The best large dark black to date. Plant in part sun to medium shade. Give good drainage and consistent water. Feed with all purpose fertilizer. USDA zone 7 in cold hardiness.