Elephant Ear (Colocasia esculenta Royal Hawaiian® Diamond Head) in the Elephant Ears (Colocasia) Database

Trade name information:
Series: Royal Hawaiian®
Trade Name: Diamond Head
Cultivar name: 'Diamond Head'
Common names:
Give a thumbs up Elephant Ear
Give a thumbs up Elephant's Ear
Give a thumbs up Taro

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

outdoor container near conservatory

Photo gallery:
Location: Bronx Botanical garden, NYDate: 2015-09outdoor container near conservatory
By skylark
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Photo courtesy of Longfield Gardens
By Joy
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This plant is tagged in:
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Discussion Threads about this plant
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Banner for October 23, 2016 by Char by Char Oct 23, 2016 7:15 PM 12
Red stemmed EE?? by bluegrassmom Jun 16, 2016 7:18 AM 1
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Color Echoes, anyone? by pirl Oct 15, 2020 6:20 AM 2,541
Swaybacks elephant ear sale by Swayback Sep 12, 2015 7:03 PM 31
Let's talk about elephant ears! by Swayback Oct 3, 2020 3:19 PM 1,010
Elephant Ears-Colocasia, Alocasia, Xanthosoma and Caladium by Taylor696 Feb 21, 2016 7:49 AM 595
Show Us Your Cottage Garden & Chat (July 2011) by sandnsea2 Aug 2, 2011 10:20 PM 200

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