bulb corm tuber

Dunn's Amorphophallus

The Story

Plant Bio

Amorphophallus dunnii is a tuberous perennial plant known for its large, dramatic foliage and tall flower spadix wrapped in a spathe, producing a striking floral display that emits a strong odor.

This species is distinguished by its impressive size and the unique, foul-smelling bloom that attracts carrion insects for pollination, making it a notable specimen among tropical ornamental plants.

Uses & Benefits:

Creates a dramatic, tropical focal point with its large, dark foliage and striking inflorescence.

Requires minimal maintenance once established, suitable for shaded, moist gardens.

Provides habitat for pollinators attracted by its scent and structure.

Essentials

At a Glance

Plant Type

Bulb Corm Tuber

Height

48 inches

Width

24 inches

Light

Partial Sun, Shade

Zones

8, 9, 10

Water

Moderate

Humidity

High

Lifespan

Perennial

Native To

China

Toxicity

All parts contain calcium oxalate crystals and are toxic if ingested.

Bloom period

Spring – Late fall

In flower about 8 months of the year

Planting

How to Grow

Tuck corms into well-draining soil in spring.
Water regularly but avoid waterlogging.
Mist foliage during dry periods for humidity.
Mulch to retain moisture and regulate temperature.
Fertilize with balanced fertilizer monthly during active growth.
Protect from frost by mulching or moving indoors in colder zones.

Pro Tip

Plant corms at a depth of 4-6 inches for best emergence and growth.

Keep It Thriving

Care Guide

Do

Water consistently during growing season 🌱
Ensure good drainage to prevent rot
Mulch to keep roots cool and moist

Don't

Avoid overwatering in winter ❌
Do not expose to frost without protection
Refrain from disturbing underground corms during dormancy

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

Exotic focal point with dark foliageMoist, shaded border with striking silhouette

Companion Plants

Ferns Hostas Caladiums Anthuriums

Multiply

Propagation Methods

Good to Know

Common Questions

Dunn's Amorphophallus questions

What zones can Dunn's Amorphophallus grow in?

Dunn's Amorphophallus is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Dunn's Amorphophallus deer resistant?

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

When does Dunn's Amorphophallus bloom?

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

Does Dunn's Amorphophallus need full sun?

Dunn's Amorphophallus does best in part shade.