bulb corm tuber

Sumatran Giant Amorphophallus

The Story

Plant Bio

Amorphophallus gigas is a large, tropical perennial known for its massive, umbrella-like leaves and impressive, towering inflorescence that emits a strong odor resembling decaying flesh to attract pollinators.

This species is distinguished by its enormous size, making it one of the largest in the Araceae family, and its dramatic flowering display that lasts only a few days before the plant enters dormancy.

Uses & Benefits:

Impresses with its towering form and exotic appearance, perfect as a tropical focal point.

Requires minimal care once established, thriving in shady, moist environments.

Provides habitat for pollinators attracted to its unique inflorescence.

Essentials

At a Glance

Plant Type

Bulb Corm Tuber

Height

120 inches

Width

72 inches

Light

Partial Sun, Shade

Zones

Water

Moist but well-drained

Humidity

High

Lifespan

Decades with proper care

Native To

Southeast Asia

Toxicity

All parts are toxic if ingested

Bloom period

Late summer

In flower about 1 month of the year

Planting

How to Grow

Tuck tuber into well-draining soil in late winter
Water sparingly until sprouting appears
Mist leaves regularly in humid conditions
Support tall flower stalks with stakes as they grow
Allow flowers to mature for 8-10 weeks
Remove seed pods after flowering to encourage tuber growth

Pro Tip

Ensure soil remains moist but not waterlogged; provide humidity for best growth.

Keep It Thriving

Care Guide

Do

Water sparingly during dormancy 🌱
Use well-draining soil for tuber health
Provide shade during hottest months

Don't

Overwater and cause rot ❌
Expose to direct, harsh sunlight ❌
Neglect humidity needs

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Lift Store
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tropical centerpieceShade garden accent

Companion Plants

Ferns Hostas Caladiums

Multiply

Propagation Methods

Good to Know

Common Questions

Sumatran Giant Amorphophallus questions

What zones can Sumatran Giant Amorphophallus grow in?

Sumatran Giant Amorphophallus is hardy in USDA Zone 10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Sumatran Giant Amorphophallus deer resistant?

Not reliably. Deer may browse Sumatran Giant Amorphophallus, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Sumatran Giant Amorphophallus bloom?

Sumatran Giant Amorphophallus typically blooms in late summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Sumatran Giant Amorphophallus need full sun?

Sumatran Giant Amorphophallus does best in part shade.