Elephant Ears
Year Introduced: 2008
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) (Edit)
Plant habit: Clumping
Plant height: 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): Blackish
Petiole junction color (top of leaf): Purple
Petiole color: Purple
Blackish

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Minimum cold hardiness: Zone 7b -15 °C (5 °F) to -12.2 °C (10 °F)
Plant Height: 4 to 5 feet (1.2-1.5m)
Leaves: Unusual foliage color
Other: Dark burgundy petioles.
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: Will not come true from seed
Other info: Remove seed from berry which contains chemicals that inhibit germination.
Propagation: Other methods: Division
Stolons and runners
Offsets
Containers: Suitable in 3 gallon or larger
Miscellaneous: Patent/Plant Breeders' Rights: PP19,939
Goes Dormant
Parentage: Putih x Black Magic
Child plants: one child plant

Image
Trade name information:
Series: Royal Hawaiian®
Trade Name: Diamond Head
Cultivar name: 'Diamond Head'
Common names
  • Elephant Ear
  • Elephant's Ear
  • Taro

Photo Gallery
Location: Vermont
Date: 2016-07-03
Location: Calgary
Date: April 21,2023
Purchased roots
Location: Bronx Botanical garden, NY
Date: 2015-09
outdoor container near conservatory
Uploaded by Henryr10

Photo courtesy of Longfield Gardens
  • Uploaded by Joy

Photo courtesy of Longfield Gardens
  • Uploaded by Joy
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