Alocasia ‘Sumo’

(Sumo Elephant Ears)


Hardiness Zones:

 10a  10b  7b  8a  8b  9a  9b

Quick Overview:

Big and bold, Elephant Ear ‘Sumo’ makes a dynamic statement in a large pot or as a landscape specimen. This easy grower reaches 5-6’ the first year and 8-10’ tall by the second year. The dark, upward-pointing, green leaves are huge – up to 3-4’ long when fully mature – and they reach 2.5’ across. The back sides of the leaves are light green with purple veins and highlights. The dark leaf stems are reddish-black. ‘Sumo’ is a hybrid between Alocasia ‘Portora’ and ‘Purple Cloak’ and seems to have the zone 7b hardiness of ‘Portora.’ The thick green leaves remain attractive the whole summer long.

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Best in part shade or filtered sun in moist, organically rich soils. Plant in locations protected from strong winds after last frost date. Rhizomes/tuberous roots may be started indoors in pots or containers. After last frost date, pots may be sunk to the rim in the garden and containers may be set out on the patio. Water and fertilize regularly. Before first fall frost, pots may be dug up and pots/containers should be brought inside where they can overwintered in a humid, cool (around 60-65°F) location. Reduce watering in winter. Return to the garden in spring. Rhizomatous varieties are best left in pots year-round. Tuberous varieties may be planted directly in the garden in late spring. After first fall frost, dig and lift tubers, shake off loose soil, dry and store in cool, dry location for winter. May be grown as a houseplant.

Additional information

Common Name

Sumo Elephant Ears

Evergreen or Deciduous


Botanical Name

Alocasia 'Sumo'

Hardiness Zone

10a, 10b, 7b, 8a, 8b, 9a, 9b

Growth Rate


Light Requirements

Part-sun, Sun





Soil Condition

Average to Wet Soils

Water Needs


Foliage Color

Green with purple veined undersides

Deer Resistant


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