Overview
Arisaema sikokianum is a plant with a columnar upright habit in the genus Arisaema, part of the Araceae family, with deciduous foliage. Arisaema sikokianum grows best in partial shade, and tolerates loam and sand soils and acid and neutral pH. Its UK hardiness is rated H4. Suggested uses include cottage and informal garden, flower borders and beds and underplanting of roses and shrubs.
About
Arisaema sikokianum, the Japanese Jack-in-the-pulpit, is a herbaceous perennial plant. An unusual woodland plant noted for its unmistakable smoky-purple base, snow-white cup and large hood with purple, green and white stripes.
Wikipedia contributors, CC BY-SA 4.0 — Arisaema sikokianum
About the genus
Arisaema is a large and diverse genus of the flowering plant family Araceae. The largest concentration of species is in China and Japan, with other species native to other parts of southern Asia as well as eastern and central Africa, Mexico and eastern North America. Asiatic species are often called cobra lilies, while western species are often called jack-in-the-pulpit; both names refer to the distinctive appearance of the flower, which consists of an erect central spadix rising from a spathe.
Wikipedia contributors, "Arisaema", CC BY-SA 4.0 — Arisaema
Growing conditions
Best soil and position for Arisaema
- Sunlight
- Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Acid, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- North, East, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Arisaema sikokianum size, habit and characteristics
- Habit
- Columnar upright
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Flower borders and beds, Underplanting of roses and shrubs
Care notes
Pruning and caring for Arisaema sikokianum
- Propagation
- Seed sowing in containers in a cold frame in autumn or spring, Offsets removal in late summer
- Pest resistance
- Susceptible to slugs and vine weevil
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Arisaema sikokianum?
Arisaema sikokianum prefers partial shade. It suits sheltered positions.
What soil does Arisaema sikokianum need?
Arisaema sikokianum grows best in loam and sand soil. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.
Is Arisaema sikokianum hardy in the UK?
Arisaema sikokianum has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Arisaema sikokianum?
Seed sowing in containers in a cold frame in autumn or spring, Offsets removal in late summer.
