Amorphophallus koratensis 'Dark Stem Form'

perennial

Koratensis Amorphophallus

Amorphophallus koratensis 'Dark Stem Form'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun

Zones

8, 9

Water

Moderate

Humidity

High

Lifespan

Perennial

Native To

Southeast Asia

Toxicity

Yes

The Story

Plant Bio

Amorphophallus koratensis, known for its large, tropical-looking tuber and dramatic, dark-stemmed foliage, produces a striking inflorescence with a tall spadix and a spathe that can vary in color, creating a bold visual statement. This cultivar features distinctive dark-stemmed foliage and an impressive flowering display, making it a standout choice for exotic and tropical-themed gardens.

Bloom Period:

EarlyLate

Uses & Benefits:

Adds exotic appeal with dark foliage and striking flowers, perfect for shaded or tropical-themed gardens.

Resistant to clay soils when properly planted, requires minimal maintenance once established.

Emits odor to attract pollinators, supporting local insect populations.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Select well-drained, rich soil and plant tuber 4 inches deep.
Water regularly to keep soil moist but not waterlogged.
Place in a warm, sunny spot for optimal growth.
Mulch around the plant to retain moisture and regulate temperature.
Allow the plant to establish for 6 weeks before reducing watering in dormancy.
Lift and store tuber in winter if in cooler zones.

Pro Tip

Ensure good drainage and avoid overwatering to prevent rot.

Keep It Thriving

Care Guide

Do

Water during active growing season 🌱
Provide a warm, sunny location
Mulch to retain moisture

Don't

Overwater in winter ❌
Plant in poorly drained soil ❌
Expose to frost ❌

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

Dark foliage accent in tropical bordersUnique focal point in shaded garden beds

Companion Plants

Ferns Hostas Caladiums Ginger

Multiply

Propagation Methods

Good to Know

Common Questions

Koratensis Amorphophallus questions

What zones can Koratensis Amorphophallus grow in?

Koratensis 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 Koratensis Amorphophallus deer resistant?

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

When does Koratensis Amorphophallus bloom?

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

Does Koratensis Amorphophallus need full sun?

Koratensis Amorphophallus does best in full sun (6+ hours).