perennial

Asterostigmatus Amorphophallus

Amorphophallus asterostigmatus

The Story

Plant Bio

Amorphophallus asterostigmatus is a tuberous perennial with large, dramatic leaves and a distinctive inflorescence that produces a tall, spadix surrounded by a spathe, often emitting a strong odor to attract pollinators.

This species is notable for its unique star-shaped markings on the spadix and its striking, large floral display that emerges suddenly during its flowering season.

Uses & Benefits:

Ornamental UsesAdds exotic appeal with striking foliage and unusual flower structure, creating a tropical focal point.
Practical UsesPrefers shaded, moist environments, thriving in low-light garden corners.
Ecological BenefitsProvides habitat for certain pollinators attracted to its unique flowers.

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

30 inches

Light

Partial Sun, Shade

Zones

10

Water

Moderate

Humidity

High

Lifespan

Perennial

Native To

Southeastern Asia

Toxicity

Yes

Planting

How to Grow

  1. Tuck corms into well-draining soil in early spring.
  2. Water regularly to keep soil moist but not waterlogged.
  3. Mist foliage during dry spells for humidity.
  4. Place in partial shade for optimal growth.
  5. Fertilize monthly with balanced fertilizer during active growth.
  6. Mulch to retain moisture and regulate soil temperature.

Pro Tip

Plant corms at a 4-inch depth for best emergence and growth.

Keep It Thriving

Care Guide

Do

  • Water consistently during growing season 🌱
  • Provide partial shade in hot climates
  • Apply fertilizer monthly during active growth
  • Mulch to conserve moisture

Don't

  • Overwater causing rot ❌
  • Expose to full sun in intense heat ❌
  • Allow soil to dry out completely ❌
  • Neglect mulching or fertilizing

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Lift Store
Pest Check
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tropical-themed borderFocal point in shade garden

Companion Plants

Ferns Hostas Caladium

Multiply

Propagation Methods

Good to Know

Common Questions

Asterostigmatus Amorphophallus questions

What zones can Asterostigmatus Amorphophallus grow in?

Asterostigmatus 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 Asterostigmatus Amorphophallus deer resistant?

Not reliably. Deer may browse Asterostigmatus Amorphophallus, especially tender spring growth β€” plan on repellents or fencing where pressure is high.

When does Asterostigmatus Amorphophallus bloom?

Asterostigmatus Amorphophallus typically blooms in spring to early summer through late fall. Exact timing shifts a week or two with your zone β€” Sow's bloom calendar maps it to your garden.

Does Asterostigmatus Amorphophallus need full sun?

Asterostigmatus Amorphophallus does best in part shade.

Keep exploring

Hardy in your zone?

Grow Asterostigmatus Amorphophallus with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.