Elephant foot yam (suran, buk) Amorphophallus paeoniifolius
Elephant foot yam (suran, buk) (Amorphophallus paeoniifolius) is a deciduous perennial vegetable in the Araceae family, native to Tropical Asia (India to Southeast Asia, New Guinea and northern Australia). It grows 1–2 m (3.3–6.6 ft) tall and 1–1.5 m (3.3–4.9 ft) wide, wants part sun to part shade and moderate water, and is hardy to about 5 °C (41 °F). Space plants about 90 cm (35 in) apart.
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Elephant foot yam (suran, buk) at a glance
| Type | Perennial vegetable, deciduous |
|---|---|
| Family | Araceae |
| Mature height | 1–2 m (3.3–6.6 ft) |
| Mature spread | 1–1.5 m (3.3–4.9 ft) |
| Spacing | 90 cm (35 in) centre to centre |
| Sun | Part sun to part shade, at least 4 h of direct sun a day |
| Water | Moderate; drought tolerance low, waterlogging tolerance none |
| Soil pH | 5.5–7 |
| Cold hardiness | About 5 °C (41 °F) once established (roughly USDA zone 11) |
| Heat stress | Likely above about 38 °C (100 °F) |
| Flowering | from about April for 0–1 weeks (northern hemisphere; later in cold climates, earlier in warm ones) |
| Wind tolerance | Low |
| Pollinator value | Low |
| Edible | Yes: corm (cooked well), young leaf stalks (cooked) |
| Native to | Tropical Asia (India to Southeast Asia, New Guinea and northern Australia) |
| Common in gardens of | 🇮🇳 India, 🇹🇭 Thailand, 🇮🇩 Indonesia, 🇵🇭 Philippines, 🇻🇳 Vietnam |
Is Elephant foot yam (suran, buk) toxic?
- People: moderately toxic
- Cats: moderately toxic
- Dogs: moderately toxic
- Parts: raw corm, leaves, sap
Calcium oxalate raphides: raw tissue burns the mouth and throat and the sap itches. Peel, boil and discard the water; tamarind or kokum is traditionally added.
If a child or pet may have eaten part of a plant, call a poison centre or vet straight away.
Companion planting: what to grow with Elephant foot yam (suran, buk)
No well-documented helpful pairing. Group it with plants that like part sun to part shade and moderate water.
Questions about Elephant foot yam (suran, buk)
- How far apart should I plant Elephant foot yam (suran, buk)?
- About 90 cm (35 in) apart, centre to centre. A mature plant spreads 1–1.5 m (3.3–4.9 ft).
- Does Elephant foot yam (suran, buk) need full sun?
- Part sun to part shade: at least 4 hours of direct sun a day.
- How much water does Elephant foot yam (suran, buk) need?
- Moderate water. Drought tolerance is low and waterlogging tolerance none.
- How cold-hardy is Elephant foot yam (suran, buk)?
- It tolerates about 5 °C (41 °F) once established, roughly USDA zone 11.
- When does Elephant foot yam (suran, buk) flower?
- From about April for 0–1 weeks (northern hemisphere; later in cold climates, earlier in warm ones).
- Is Elephant foot yam (suran, buk) poisonous to cats and dogs?
- For cats it is moderately toxic; for dogs moderately toxic; for people moderately toxic. Calcium oxalate raphides: raw tissue burns the mouth and throat and the sap itches. Peel, boil and discard the water; tamarind or kokum is traditionally added.
- What grows well with Elephant foot yam (suran, buk)?
- There is no well-documented companion pairing for Elephant foot yam (suran, buk). Group it with plants that like the same sun (part sun to part shade) and water (moderate).
Sources and evidence
Evidence grade B (B: extension service or peer-reviewed).
- Plants of the World Online (taxonomy, native range), Royal Botanic Gardens, Kew
- PROSEA: Plant Resources of South-East Asia, PROSEA Foundation, Bogor
- EcoCrop crop environmental requirements, FAO
Notes and assumptions
- Tropical: needs warm nights all year; in a frosty climate grow it under glass or as a summer container plant.
- One huge, umbrella-like divided leaf on a mottled stalk each rainy season; the corm is dug after 8–10 months, at up to 10 kg or more. Mature corms send up a squat, carrion-scented maroon flower before the leaf.
Reference values for planning, not horticultural, veterinary or medical advice. Varieties, soils and local climates differ: check with a local nursery or extension service.
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- Swiss cheese plant Monstera deliciosa
- Giant taro (elephant ear) Alocasia macrorrhizos
- Flamingo flower Anthurium andraeanum
- Tannia (malanga, yautía, cocoyam) Xanthosoma sagittifolium