Colocasia, Elephant Ear, Imperial Taro

Colocasiaesculenta var. illustris

Family
Araceae (a-RAY-see-ee)
Genus
Colocasia (kol-oh-KAY-see-uh)
Synonym
Colocasia antiquorum var. illustris
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Velvet/Fuzzy
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Pale Yellow
Bloom Time
Late Spring/Early Summer
Other Details
Category
Ponds and Aquatics
Tropicals and Tender Perennials
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
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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

Birmingham, Alabama

Irvington, Alabama

Cabot, Arkansas

Brentwood, California

Clayton, California

El Sobrante, California

Escondido, California

Garden Grove, California

Oakhurst, California

Oakland, California

Oceanside, California

Palm Springs, California

San Bernardino, California

San Jose, California

Clearwater, Florida(2 reports)

Daytona Beach, Florida

Deerfield Beach, Florida

Deltona, Florida

Jacksonville, Florida(3 reports)

Keystone Heights, Florida

Lake Worth, Florida(2 reports)

Melbourne Beach, Florida

Oldsmar, Florida

Rockledge, Florida

Covington, Georgia

Dallas, Georgia

Marietta, Georgia

Thomasville, Georgia

Honomu, Hawaii

Chicago, Illinois

Greenville, Indiana

Shepherdsville, Kentucky

Denham Springs, Louisiana

Franklin, Louisiana

Mandeville, Louisiana

New Orleans, Louisiana

Slidell, Louisiana

Thibodaux, Louisiana

Westlake, Louisiana

Hattiesburg, Mississippi

Maben, Mississippi

Ripley, Mississippi

Carmel, New York

Ithaca, New York

Rochester, New York

Clemmons, North Carolina

Elizabeth City, North Carolina

Emerald Isle, North Carolina

Cincinnati, Ohio

Edmond, Oklahoma

Oklahoma City, Oklahoma

Yukon, Oklahoma

Brookings, Oregon

Harbor, Oregon

Georgetown, South Carolina

Okatie, South Carolina

Summerville, South Carolina

Memphis, Tennessee

Westmoreland, Tennessee

Alvin, Texas

Boerne, Texas

Burleson, Texas

Cibolo, Texas

Fort Worth, Texas(2 reports)

Frisco, Texas

Grand Prairie, Texas

Houston, Texas(3 reports)

Mc Kinney, Texas

Murchison, Texas

Richmond, Texas

Spring, Texas

Newport News, Virginia

Kalama, Washington

Eagle, Wisconsin

show all

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Gardener's Notes:

14
positives
4
neutrals
0
negative
Sort By:
Sort By:
J
Collierville, TN | November 2017 | positive

Colocasia esculenta 'Illustris' grows well in my zone 7b garden. It returns every season producing more babies.

S
between Clearwater & Largo, FL (Zone 10a) | August 2013 | neutral

I am reviewing the Elephant Ear "illustris" - It is growing in my yard in part sun and part shade, but unlike my giant Elephant Ears, it ...Read More

B
Indianapolis, IN (Zone 5b) | March 2009 | positive

I have had these for a couple of years now. I love the look of them. Of course, I'm a sucker for any and all elephant ears.

...Read More

2
Bartlett, TN (Zone 7b) | February 2009 | positive

I'm in 7b just outside of Memphis & this plant has returned for me for 4 years now. I do mulch heavily (5-6") to protect it a little more...Read More

S
Birmingham, AL (Zone 7b) | June 2008 | positive

I live in a 7B zone and mine came back this year.

P
Eagle, WI | September 2007 | positive

In zone 5 we bring the tarot in and grow as a house plant.They are magnificent in the pond ans propagate by themselves. I had a minehuna ...Read More

M
Rochester, NY (Zone 6a) | January 2007 | positive

my favorite taro, very easy to grow, makes lots of babies to share with friends. My plants have always shown more dark patterning when pl...Read More

C
Waterbury, CT | October 2006 | positive

I have grown this plant for the last two years in a large pot in very partial sun. It grows beautifully through summer in Connecticut. It...Read More

D
Lake Worth, FL (Zone 10a) | October 2006 | positive

Neat plant, does well here in S-FL and likes the Summer downpoors. Noticed that plants in sunnier parts of the yard developed a more int...Read More

R
Covington, GA (Zone 7b) | April 2006 | neutral

I planted my Elephant ear last year and it was BEAUTIFUL, even took some baby plants and put them in pots. However this year (April), I ...Read More

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

I'm giving this a neutral rating, but yet I really think it's just a stunningly attractive, high impact plant. My less than complete sat...Read More

N
Sparks, NV (Zone 7a) | May 2005 | neutral

This is another plant that needs warmer summer nights than I can provide. I tried it, it limped along and eventually failed.

H
Oklahoma City, OK | February 2005 | positive

I have grown Illustris in my garden for 3 years now. Each year, I have to dig up numerous new "babies" that come up from underground runn...Read More

L
Ithaca, NY (Zone 5b) | November 2004 | positive

I have grown this plant and overwintered inside for about 6 years. This is a fairly fast growing plant and where I started out with 1 pl...Read More

V
(Zone 8a) | September 2004 | positive

I have clumps growing in full sun and also in mostly shade and don't see much of a difference. It was sold to me as "black magic" and I...Read More

S
Westlake, LA | February 2004 | positive

The first year I grew it, I had it in complete shade. It did well, but the black could have been deeper. It survived a night at 29 deg....Read More

S
Green Bay, WI (Zone 5a) | August 2003 | positive

This is the third year I have grown this plant in a whiskey barrel outside during the summer. I have a greenhouse (50 degrees F.) where I...Read More

M
M
Ewing, KY (Zone 6a) | August 2002 | positive

Can grow as a marginal water plant. Has blackish purple leaves with green veins.This is really a pretty plant.

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