Titan arum (Amorphophallus titanum)
Titan arum
About this plant
Amorphophallus titanum, known as the titan arum or corpse flower, is famous for its enormous size and strong odor resembling rotting flesh when it blooms. It produces one of the largest flowers in the world, attracting pollinators like carrion beetles. Native to the rainforests of Sumatra, it is a rare and fascinating plant often grown in botanical gardens for education and conservation.
Taxonomy
Higher classification: Order Alismatales
Origin & Distribution
- Native region
- Sumatra, Indonesia
- Distribution
- Native to Sumatra, Indonesia; cultivated in botanical gardens worldwide.
Care
- Suitable locations
- Indoor, Greenhouse, Outdoor
- Preferred window facing
- East-facing, Southeast-facing, South-facing
- USDA hardiness zones
- 10-12
- Soil pH
- 6.0-7.0
- Soil type
- well-draining loam, rich in organic matter
Watering. Keep soil consistently moist but not waterlogged during growth. Reduce watering significantly during dormancy to prevent tuber rot.
Fertilizing. Feed with a balanced, water-soluble fertilizer every 2-3 weeks during the growing season. Avoid fertilizing during dormancy.
This plant is challenging to grow and requires specific conditions including warm temperatures, high humidity, and well-draining soil. It has a long dormancy period and needs patience. Problems often arise from overwatering or insufficient warmth. Regular monitoring and careful watering are essential.
Propagation
- Propagation methods
- Seeds, Division
Ornamental features
- Flowering
- Yes
- Flowering period
- summer
Massive single flower with a tall central spike (spadix) surrounded by a large petal-like structure (spathe); large tropical leaves when not flowering.
Toxicity & Safety
Not known to be toxic to humans or pets, but the strong odor can be unpleasant and cause nausea.
Allergy information
Amorphophallus titanum produces a strong odor during flowering that can cause discomfort or allergic reactions in sensitive individuals. People with respiratory issues or sensitivities should avoid close exposure during bloom. The main trigger is the flower's scent, which can cause headaches or nausea. To reduce exposure, keep distance when the plant is flowering and ensure good ventilation.
Common problems
Overwatering can cause tuber rot. Low temperatures or dry air may prevent growth or flowering. Pests are rare but watch for fungal issues if humidity is too high without airflow.
Uses
Primarily grown as an ornamental plant in botanical gardens for its unique and dramatic flowering event. It is also used for educational and conservation purposes.
Notes
The plant has a long dormancy period where the tuber rests underground. Repotting is rarely needed and should be done carefully to avoid damaging the tuber. Pruning is not necessary. Sensitive to cold temperatures below 10°C (50°F).