Photo by Melody

PlantFiles: Persian Palm, Portadora, Alocasia
Alocasia 'Portora'

Family: Araceae (a-RAY-see-ee) (Info)
Genus: Alocasia (a-loh-KAY-see-uh) (Info)
Cultivar: Portora
Hybridized by Garner

Synonym:Alocasia portidora
Synonym:Alocasia portadora
Synonym:Alocasia portodora
Synonym:Alocasia x portora

3 vendors have this plant for sale.

15 members have or want this plant for trade.

Ponds and Aquatics
Tropicals and Tender Perennials

6-8 ft. (1.8-2.4 m)

4-6 ft. (1.2-1.8 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)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Sun to Partial Shade
Light Shade

All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Maroon (Purple-Brown)

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Fall
Late Fall/Early Winter

Grown for foliage

Other details:
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
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:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By Lanan
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There are a total of 15 photos.
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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive Leesto On Aug 22, 2013, Leesto from Los Angeles, CA (Zone 10a) wrote:

I planted this in a pot which I placed on my patio in Southern California. In 5 months it went from 2 ft. tall to at least 7 ft. It is on the south side of my house where it gets an hour or two of sun in the morning but is shaded the rest of the day. Through the heat of August (95 to 100 degrees) it needs water a couple times a day. Every week or so I give it a dose of liquid fertilizer. People always notice it and comment. It's quite the specimen!

Positive glen74 On Jun 21, 2008, glen74 from Effingham, IL (Zone 5b) wrote:

If I had to pick my 10 favorite tropicals, Alocasia 'Portora' would be among the top 5. I was first introduced to this wonderful plant when it was a new selection from Plant Delights Nursery around 2000-2001, perhaps 2002. I received a very healthy specimen, small, but nice. It was actually my first introduction to the world of elephant ears. I planted it in a large 15 gallon container and that first season it grew to around 4-5 feet in height. It produced several daughter bulbs close to the mother plant and they all grew very large. It was an amazingly beautiful plant. Leaves are large and thick, and seemed to hold up well in the wind. If you want a tropical feel to a patio, try this one. It is very easy to grow in my experience and has a great tall architectural form. I successfully overwintered it in my basement next to a south facing walkout patio door. It grew all winter with only a short period of rest when I let it get too dry. At that time it held what leaves it had but for about a month and a half it didn't grow new leaves at all. The only problem I have ever had with 'Portora' has been spider mites. They are relentless in the winter months.

During the second growing season this plant grew even higher, to approximately 6ft. It produces a trunk unlike the common elephant ear and it was around 6 inches or so in diameter. The stems and trunk are attractive as well...they are a light grayish green color mottled with a faint streaking of purple and gray.

During the 3rd growing season, I divided the plant to share with a friend and planted what I had left in the ground. BIG MISTAKE on my part! Voles destroyed my plants by burrowing around the thick trunk and chewing on the bulbous base and roots. The friend that received my extra plants still has them growing to this day. She stores hers like regular elephant ear bulbs and begins growing them in February/March. She has reported that 'Portora' is the first to sprout and is generally much larger than other varietes of Alocasia and Colocasia before she plants them outdoors in May.

Something to note concerning toxicity with this plant. I have never had an allergic reaction to any elephant ear sap. However, everytime I would remove stems and older leaves from A. 'Portodora', I would break out in a burning rash on my arms when the sap would spray from the cut stems. After about 20 minutes or so the rash was gone. Still didn't stop me from loving this plant.

Fortunately, I acquired a plant on Ebay this spring and it is already growing to enormous proportions. LariAnn Garner, I thank you for introducing such a wonderful specimen! Your work is amazing.

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

The superb alocasia hybrid was selected by Ron Weeks, from seedlings of a cross made by LariAnn Garner of Aroidia Research. This hybrid of A. odora x A. portei makes a stunning upright clump that is essentially an improved A. macrorrhizos. Each giant, green, heavily scalloped leaf is held sturdily upright atop the thick, muscular purple stalks. This is truly an architectural specimen plant for any garden. As with all elephant ears, a moist rich organic soil is best. A good thick winter mulch helps prevent rot in cold wet soils.


This plant has been said to grow in the following regions:

Millbrook, Alabama
Montgomery, Alabama
Hayward, California
Martinez, California
Reseda, California
Van Nuys, California
Cape Coral, Florida
Eustis, Florida
Homestead, Florida
Miami, Florida
Mulberry, Florida
Santa Rosa Beach, Florida
Umatilla, Florida
Winter Haven, Florida
Hawkinsville, Georgia
Savannah, Georgia
Effingham, Illinois
Glen Ellyn, Illinois
Falmouth, Massachusetts
Gulfport, Mississippi
Huntersville, North Carolina
New London, North Carolina
Supply, North Carolina
Oklahoma City, Oklahoma
Portland, Oregon
Bluffton, South Carolina
Murrells Inlet, South Carolina
Summerville, South Carolina
Sumter, South Carolina
Clarksville, Tennessee
Laneville, Texas
Red Oak, Texas
Spring Branch, Texas
Sugar Land, Texas
Jonesville, Virginia
Leesburg, Virginia

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