Colocasia Species, Elephant Ear

Colocasiagigantea

Family
Araceae (a-RAY-see-ee)
Genus
Colocasia (kol-oh-KAY-see-uh)
Species
gigantea (jy-GAN-tee-uh)
Synonym
Arisaema fouyou
Caladium giganteum
Colocasia prunipes
Leucocasia gigantea
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Deciduous
Herbaceous
Velvet/Fuzzy
Height
6-8 ft. (1.8-2.4 m)
Spacing
36-48 in. (90-120 cm)
Hardiness
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Pale Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Bulbs
Ponds and Aquatics
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting
Seed does not store well; sow as soon as possible
Regional

This plant is said to grow outdoors in the following regions:

Tucson, Arizona

Malvern, Arkansas

Clayton, California

Escondido, California

Torrance, California

Gulf Breeze, Florida

Lakeland, Florida

Navarre, Florida

Seminole, Florida

Winter Haven, Florida

Winter Springs, Florida

Colbert, Georgia

Dallas, Georgia

Savannah, Georgia

Horse Cave, Kentucky

Kenner, Louisiana

Rienzi, Mississippi

Joplin, Missouri

Billings, Montana

Elizabeth City, North Carolina

Raleigh, North Carolina

Statesville, North Carolina

, Ontario

Fannettsburg, Pennsylvania

Aynor, South Carolina

Florence, South Carolina

Amarillo, Texas

Austin, Texas

Baytown, Texas(2 reports)

Mansfield, Texas

Midlothian, Texas

Odessa, Texas

San Antonio, Texas

Chesapeake, Virginia

Manassas, Virginia

Concrete, Washington

show all

Featured Videos

Gardener's Notes:

6
positives
2
neutrals
0
negative
Sort By:
Sort By:
S
Gulf Breeze, FL | July 2010 | positive

I love this plant. I just planted the tubers about 3 months ago and they have already filled in the whole corner. Fast and easy growing...Read More

M
Keaau, HI | July 2010 | neutral

Colocasia gigantea is referred to in Hawai'i as 'iliuaua.

S
S
Raleigh, NC (Zone 7a) | April 2010 | positive

Colocasia gigantea is an incredible plant. It is slow to get started in my North Carolina Garden but once July rolls around, watch out!

D
Winter Haven, FL (Zone 9b) | July 2009 | positive

I love "Big" plants and this is certainly one of them!

R
Statesville, NC | May 2009 | positive

Not had much time growing this plant. (mine are only about four inches tall now) They do start pretty easily from seed but in an experime...Read More

M
Erwin, TN (Zone 7a) | March 2008 | positive

Taste test for Iliuaua
Iliuaua is a good Table variety,The Corm, is similar to Bunn Long but is not as dry in Texture, and has a...Read More

J
Dallas, GA (Zone 7b) | September 2007 | positive

I love these elephant ears, they provide shade for the smaller varieties that can't take the full sun. They also provide a great habitat ...Read More

S
S
(Zone 7b) | January 2006 | neutral


Plant Delights offers this description:
"Resembling an alocasia, the 6' tall grey petioles (stalks) hold the large silver-...Read More

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