Colocasia, Elephant Ear, Taro, Super Size Elephant Ear 'Thailand Giant Strain'

Colocasia gigantea

Family: Araceae (a-RAY-see-ee) (Info)
Genus: Colocasia (kol-oh-KAY-see-uh) (Info)
Species: gigantea (jy-GAN-tee-uh) (Info)
Cultivar: Thailand Giant Strain



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

Sun Exposure:

Sun to Partial Shade

Light Shade


Grown for foliage



Foliage Color:



8-10 ft. (2.4-3 m)


8-10 ft. (2.4-3 m)


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)

Where to Grow:

Grow outdoors year-round in hardiness zone


All parts of plant are poisonous if ingested

Bloom Color:

White/Near White

Bloom Characteristics:

Flowers are showy

Bloom Size:


Bloom Time:

Late Summer/Early Fall

Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:

Unknown - Tell us


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

Chico, California

Garden Grove, California

Long Beach, California

Crawfordville, Florida

Dunnellon, Florida

Fort Myers, Florida

Lakeland, Florida

Largo, Florida

Port Charlotte, Florida

Sarasota, Florida

Canton, Georgia

Woodstock, Georgia

Chicago, Illinois

Villa Park, Illinois

Fairfield, Iowa

ST JOHN, Mississippi

Toms River, New Jersey

Atkinson, North Carolina

Elizabeth City, North Carolina

Huntersville, North Carolina

Raleigh, North Carolina(2 reports)

Southern Pines, North Carolina

Cincinnati, Ohio

Perrysburg, Ohio

Ladys Island, South Carolina

Lexington, South Carolina

Sumter, South Carolina

Lake City, Tennessee

Louisville, Tennessee

Bedford, Texas

Colleyville, Texas

Dripping Springs, Texas

Fort Worth, Texas

Galveston, Texas

Hurst, Texas

Richmond, Texas

St John, Virgin Islands

show all

Gardeners' Notes:


On Jul 22, 2016, snorky1 from Tallahassee, FL wrote:

fast growing with very large results,seems bug resistant. others have said shade to partial sun but mine seems to enjoy full sun since were i planted it it gets full sun from 11am to 5 pm throwing new leaves every few days and doubled in size every month. you must take serious consideration were you plant it and how you plant it do to its size, water and nutritional needs. our little one loves to go out to it every other day and say look a new leaf!! its big!! and then say wow!! i think this is the best part :)
it is poisonous so beware it is not edible and wash you hands after you handle clippings or prune


On Jul 9, 2016, DawnandGreg from Birmingham,
United Kingdom wrote:

Hi I live in Birmingham England and have purchased these seeds, could anyone advise me when and how and where to plant these seeds please. Thanks in advance.


On May 21, 2016, vossner from East Texas,
United States (Zone 8a) wrote:

I've been growing this plant for six years. It has not expanded much, wished it had. I love it. Planted inground, moist area, mostly shade.


On May 19, 2014, jv123 from Chehalis, WA (Zone 8b) wrote:

Very easy to start from seed. Just lay a seed on moist compost and keep it moist. In three months it will go from a seed the size of a grain of sand to a foot tall. Then in another three months it'll be giant!


On Jul 3, 2012, henryr10 from Cincinnati, OH (Zone 6b) wrote:

We have grown Colocasia gigantea for a while.
This Colocasia gigantea 'Thailand Giant Strain' blows it out of the water.
A month or so ago we bought a 3' tall plant in a gallon pot.
Re-potted to a 36" pot manured and composted heavily.
Water daily.
We are now looking at 32" (shoulder to tip) leaves and a spathe and it's only the first of July!
We still have at least 3 months of growing to go here in Cincinnati.


On Jan 9, 2012, Jim_n_LB from Long Beach, CA wrote:

Didn't really know what I was purchasing, but looked good. Two years later - amazing! Brown trunk is 3" tall and overall plant reaches nearly 12'. Planted east side of house, Long Beach, California


On Apr 5, 2010, stella from Raleigh, NC (Zone 7a) wrote:

In North Carolina, we can keep this zone 8b plant alive over the winter by covering it with 1' of leaves and stuff during the winter. It does not start growing again until July, but by September it is huge!


On May 12, 2009, WendyKellyBudd from Chico, CA wrote:

I bought the tiniest start from an ebay seller last year. Potted it into a 24" pot, placed it under an oak tree where it gets direct morning sun and in the afternoon has bright light, but no direct sun. Summers are hot, and dry here. Also, keep it out of winds so the leaves don't shread.

This puppy grew so large!!! I have a photo of my hubby hiding under a leaf. Everyone comments on this plant.

AND, it overwintered outside in zone 8b. We live in a two story home, so I put the pot on the ground floor, against the house, protected under the second story's deck, facing South. February gets down to 22F here, I thought for sure it died. It was a blackened stub and there were no signs of life...but it came back in early May!! I bought another this year as... read more


On Nov 23, 2008, keonikale from Lexington, SC (Zone 8a) wrote:

This is one of our favorite colocasia. It grows extremely fast and the leaves get quite large within just a few months. Spath's will bloom in rows of four and produce large seed pods (if pollinated) beneath each spath. Once they burst you can harvest the seeds, which will be in dozens (if not hundreds) of small "pouches." Each pouch holds dozens of tiny tomato sized seeds that can be planted and will sprout within 2-3 weeks. By three months they'll often have 3-4 leaves and be well on their way to becoming adults in another growing season or two.


On Jan 20, 2006, Suze_ from (Zone 7b) wrote:

This huge strain of the giant elephant ear was grown from wild collected seed (PES 1003B) from Kanchanaburi Province, Thailand, in 2003 by former PDN research manager Petra Schmidt. In the wild, the plants reached a massive 9' tall, which is much larger than the clone of C. gigantea that we currently grow. For us, each individual leaf grows in excess of 5' long x 4' wide. Each seedling will differ slightly, but massive plants will be the result. In foliage, the leaves are an attractive glaucous-grey which is typical of this species. From an early age, the plants are adorned with clusters of dramatically large, pleasantly scented, white flowers.