Alocasia, Upright Elephant Ear, Giant Taro, Wild Taro 'Black Stem'

Alocasiamacrorrhizos

Family
Araceae (a-RAY-see-ee)
Genus
Alocasia (a-loh-KAY-see-uh)
Species
macrorrhizos (mak-roh-RY-zos)
Synonym
Alocasia macrorrhiza
Arum indicum
Colocasia indica
Sun Exposure
Partial to Full Shade
Foliage
Grown for foliage
Height
12-15 ft. (3.6-4.7 m)
Spacing
8-10 ft. (2.4-3 m)
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
Cream/Tan
Bloom Time
Blooms all year
Other Details
Category
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
Chartreuse/Yellow
Dark/Black
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
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting
Regional

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

Navarre, Florida

Orlando, Florida

Festus, Missouri

Featured Videos

Gardener's Notes:

1
positive
1
neutral
0
negative
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L
Windsor, MO (Zone 6b) | September 2017 | neutral

The particular photos on this page are of the Colocasia antiquorum 'Black Stem' not the Alocasia macrorrhizos 'Black Stem. Petioles of th...Read More

S
Corydon, KY | September 2009 | positive

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 ...Read More

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