bulb corm tuber

Titan arum

Amorphophallus titanum

The Story

Plant Bio

A tropical tuberous perennial famous for producing the world's largest unbranched inflorescence, which emits a powerful odor of rotting flesh to attract pollinators.

Exhibits a unique life cycle, alternating between producing a single, massive, tree-like leaf that can last for over a year, and (infrequently) a colossal, short-lived inflorescence, followed by a period of dormancy.

Uses & Benefits:

Ornamental UsesCreates a striking, tropical focal point with its enormous, unique flower and lush foliage.
Practical UsesProvides an interesting conversation piece in botanical collections.
Ecological BenefitsSupports pollinators attracted to its unique scent during blooming.

Essentials

At a Glance

Plant Type

Bulb Corm Tuber

Height

120 inches

Width

144 inches

Light

Partial Sun

Water

Moderate

Humidity

High

Lifespan

Decades

Native To

Sumatra

Toxicity

Toxic if ingested

Bloom period

Summer – Early summer

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 12 months of the year

Planting

How to Grow

  1. Tuck corms 4 inches deep in well-draining soil.
  2. Mist leaves regularly during growing season for humidity.
  3. Transplant in early spring after frost risk passes.
  4. Water consistently but avoid waterlogging; keep soil moist.
  5. Fertilize monthly with balanced fertilizer during active growth.
  6. Allow leaves to die back naturally in winter; reduce watering.

Pro Tip

Use a large, well-draining pot with rich organic compost for best growth.

Keep It Thriving

Care Guide

Do

  • Maintain high humidity around the plant 🌱
  • Keep soil moist but not soggy
  • Provide bright indirect light

Don't

  • Avoid overwatering to prevent rot ❌
  • Don’t expose to direct harsh sunlight
  • Never allow soil to dry out completely

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Lift Store
Pest Check
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tropical focal pointLarge-scale exotic displayShade garden centerpiece

Companion Plants

Ferns Palms Elephant ears Ginger

Multiply

Propagation Methods

Good to Know

Common Questions

Titan arum questions

Is Titan arum deer resistant?

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

When does Titan arum bloom?

Titan arum typically blooms in summer through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Titan arum need full sun?

Titan arum does best in part shade.

Keep exploring

Grow Titan arum 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.