PlantsElephant Ears (Alocasia)→Elephant Ear (Alocasia 'Sumo')

Common names:
Give a thumbs up Elephant Ear
Give a thumbs up Elephant's Ear

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F)
Maximum recommended zone: Zone 11
Plant Height: 6 to 8 feet, possibly higher
Leaves: Unusual foliage color
Other: Leaves are 3 to 4 feet long, dark green to gray in color on upper leaf surface; gray-green reverse and reddish-purple veins.
Flower Time: Other: Seasonal.
Underground structures: Rhizome
Resistances: Deer Resistant
Rabbit Resistant
Humidity tolerant
Toxicity: Other: All parts of plant contain calcium oxalate crystals, an irritant to the mouth and esophagus. Toxic to cats and dogs.
Propagation: Seeds: Other info: Remove seed from berry which contains chemicals that inhibit germination. Viability declines if seeds are allowed to dry. Soak overnight in distilled water and plant.
Propagation: Other methods: Division
Offsets
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots

One of several blooms that emerged through December.

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Plant Events from our members
Macrocentra On January 26, 2021 Maintenance performed
Pruned dried leaves, and spent blooms.
Macrocentra On December 26, 2020 Bloomed
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Discussion Threads about this plant
Thread Title Last Reply Replies
Alocasia Inflorescence - How to Pollinate? by Macrocentra Dec 26, 2020 4:25 PM 3
Photo shows, 10 days of positivity by Gina1960 Jan 6, 2021 4:34 PM 223
Overwintering Alocasias and a Caladium by Macrocentra Oct 2, 2020 7:56 PM 1
Adansonii vs Esqueleto by emmapb Oct 22, 2020 9:56 PM 23
Show your new aroid leaves!!!!! by Gina1960 Sep 5, 2021 9:21 PM 121

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