Colocasia Royal Hawaiian Black Coral

Striking, large, glossy, jet-black foliage contrasts spectacularly with bright-colored plants.

Available in 6′ and 10″ Pots



Elephant Ears (Colocasia)→Taro (Colocasia esculenta Royal Hawaiian® Black Coral)

Trade name information:
Series: Royal Hawaiian®
Trade Name: Black Coral
Cultivar name: ‘Black Coral’
Common names:
Elephant Ear
Elephant’s Ear


Elephant Ears
Year Introduced: 2012
Heredity: Hybrid
History: Royal Hawaiian series Colocasia developed as part of a breeding program headed by John J. Cho at the University of Hawaii, Kula. Out of respect for native beliefs about taro only non-Hawaiian cultivars are used.
Country of Origin: USA
Hybridizer or Originator: John J. Cho


Data specific to Elephant Ears (Colocasia)
Plant habit: Clumping
Plant height: Medium (20-40 inches)
Tall (>40 inches)
Leaf base: Peltate
Leaf form: Wavy
Leaf surface (top of leaf): Glossy
Leaf color (top of leaf): Blackish
Leaf main veins color (top of leaf): Purple
Other: initially blue changing to purple
Petiole junction color (top of leaf): Purple
Petiole color: Purple


General Plant Information
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Wet Mesic
Minimum cold hardiness: Zone 7b -15 °C (5 °F) to -12.2 °C (10 °F)
Plant Height: 3 to 4 feet (.9-1.2m)
Plant Spread: 30 to 36 inches (75-90 cm)
Leaves: Unusual foliage color
Flower Time: Other: Seasonal
Underground structures: Tuber
Suitable Locations: Bog gardening
Uses: Will Naturalize
Eating Methods: Cooked
Resistances: Deer Resistant
Rabbit Resistant
Humidity tolerant
Toxicity: Other: All parts of plant contain calcium oxalate crystals, an irritant to the mouth and esophagus. Toxic to cats and dogs.
Propagation: Seeds: Other info: Remove seed from berry which contains chemicals that inhibit germination.
Propagation: Other methods: Division
Stolons and runners
Containers: Suitable in 3 gallon or larger
Miscellaneous: Patent/Plant Breeders’ Rights: PP23,896 (2013)
Goes Dormant
Parentage: 2002-202 x Diamond Head