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): Dull (Matte)
Leaf color (top of leaf): Green
Leaf main veins color (top of leaf): Purple
Petiole junction color (top of leaf): Purple
Petiole color: Purple

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Minimum cold hardiness: Zone 7b -15 °C (5 °F) to -12.2 °C (10 °F)
Plant Height: 3 to 5 feet (.9-1.5 m)
Plant Spread: 3 to 5 feet (.9-1.5 m)
Leaves: Unusual foliage color
Other: Purple veins, dark red petioles.
Flower Time: Other: Seasonal
Underground structures: Tuber
Suitable Locations: Bog gardening
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
Offsets
Containers: Suitable in 3 gallon or larger
Miscellaneous: Patent/Plant Breeders' Rights: PP20,003
Goes Dormant
Parentage: 2001-52 x 2002-41

Image
Trade name information:
Series: Royal Hawaiian®
Trade Name: Blue Hawaii
Cultivar name: 'Blue Hawaii'
Common names
  • Elephant's Ear
  • Elephant Ears
  • Taro

Photo Gallery
Location: My backyard.
Date: 2015-08-12
Location: My garden in N E Pa. 
Date: 2013-07-31
Location: Austin ,TX
Date: July
Location: backyard 
Date: 2015-07-09
Photo by typwc
Location: My backyard.
Date: 2015-10-15
Location: My backyard.
Date: 2015-10-15
Photo by dyzzypyxxy
Location: Longwood gardens, PA
Date: 2015-08
conservatory
Location: Longwood gardens, PA
Date: 2015-08
conservatory - ponds. Grown submerged in water.
Location: Indiana  Zone 5
Date: 2011-07-09
Location: Peterborough, ON, Canada
Date: 2015-07-14
planter with Stained Glass Hosta and Snow in Summer
Location: z6a MA, my garden
Date: 2016-08-29
Location: Peterborough, ON, Canada
Date: 2015-08-28
Location: backyard 
Date: 2015-08-14
Location: backyard 
Date: 2015-08-14
Photo by dyzzypyxxy
Location: My backyard.
Date: 2014-08-05
Location: My backyard.
Date: 2014-08-05
This plant is tagged in:
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Comments:
  • Posted by dyzzypyxxy (Sarasota, Fl) on Aug 22, 2014 7:06 PM concerning plant:
    The nice blue/purple color on the leaves and stems is better in partial shade. Remove all flowers to keep the plant producing new leaves. The flowers are nice, tall and yellow, but the plant will begin making pups after blooming if you let the flowers remain.

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