About
Arisaema concinnum is a tuberous perennial that reaches heights of about 1.5 meters. It features stolons and a single leaf that is divided into 7 to 13 pointed leaflets. In early summer, it showcases a hooded spathe that can be dark purple or green, resembling a cobra, adorned with white stripes and extending to a thin tail measuring up to 15 centimeters.
About the genus
Arisaema consists primarily of tuberous perennials characterized by palmately lobed foliage. They feature unique tubular, hooded spathes that enclose small true flowers clustered at the base of a club-shaped or filamentous spadix. After flowering, these plants produce a spike bearing red berries.
Growing conditions
- Sunlight
- Partial shade
- Soil type
- Clay, Loam, Sand
- Soil pH
- Acid, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, North-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Habit
- Columnar upright
- Foliage
- Deciduous
- Height
- 1-1.5 metres
- Spread
- 0.5-1 metres
- Time to full height
- 2-5 years
- Suggested uses
- Architectural, City and courtyard gardens, Cottage and informal garden
- Native to
- Tibet
- Toxicity
- Humans/Pets: Harmful if eaten, skin/eye irritant. Wear gloves and other protective equipment when handling For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Care notes
- Cultivation
- Plant the tubers 20cm deep in winter or spring, into moist but well-drained, humus-rich soil in a cool, partially shaded site. Mulch annually in early spring. Outdoors this species requires winter protection, or it can also be grown in deep pots in a cold greenhouse
- Pruning
- No pruning required
- Propagation
- Propagate by sowing seed in containers in a cold frame in spring or autumn, or by removing offsets in late summer
- Pest resistance
- May be susceptible to slugs and vine weevil
- Disease resistance
- Generally disease-free