Photo by Melody
We rolled out several small fixes on January 29. If you encounter any problems, please report them in the designated thread in the DG Site Updates forum.

PlantFiles: Upright Elephant Ear, Giant Taro, Wild Taro
Alocasia macrorrhizos 'Black Stem'

Family: Araceae (a-RAY-see-ee) (Info)
Genus: Alocasia (a-loh-KAY-see-uh) (Info)
Species: macrorrhizos (mak-roh-RY-zos) (Info)
Cultivar: Black Stem

Synonym:Alocasia macrorrhiza
Synonym:Arum indicum
Synonym:Colocasia indica

3 members have or want this plant for trade.

Tropicals and Tender Perennials

12-15 ft. (3.6-4.7 m)

8-10 ft. (2.4-3 m)

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:
Partial to Full Shade

All parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Blooms all year

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:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

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

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By mystic
Thumbnail #1 of Alocasia macrorrhizos by mystic

By mystic
Thumbnail #2 of Alocasia macrorrhizos by mystic

By sparky_repoman
Thumbnail #3 of Alocasia macrorrhizos by sparky_repoman

By sparky_repoman
Thumbnail #4 of Alocasia macrorrhizos by sparky_repoman

By iam_utopia
Thumbnail #5 of Alocasia macrorrhizos by iam_utopia


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive sparky_repoman On Sep 27, 2009, sparky_repoman from Corydon, KY wrote:

I love this plant. When I first got it, it was a sad little black stemmed bulb, with only two half burnt leaves. I put it on the porch at first, half day of sun. As I realized this plant loves the sunshine, I moved it to the yard out by the Avocado and the Hibiscus and it is really thriving. During really dry times, no rain, I water this plant with filtered water or saved rain water. I have not fertilized this plant since July.


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

Navarre, Florida
Orlando, Florida
Festus, Missouri

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America