| Scientific Name: | Arisaema sikokianum |
| Common Name: | Japanese Jack-in-the-pulpit |
| Family Name: | Araceae |
| Origin: | S.E. Asia / Japan / China |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Herbaceous perennial |
| Mature Size: | 0.2 - 0.4m x 0.3 - 0.6m (height x width) |
| Habit: | Spreading, Upright |
| Form: | Mounded |
| Texture: | Medium - coarse |
| Landscape Uses: | Accent plant, Alpine, Cut flower or foliage, Group or mass planting, Perennial border, Spring interest, Woodland margin |
| Exposure: | Part sun/part shade, Filtered shade, Deep shade |
| Soil or Media: | Humus rich, Well-drained |
| Leaves: | Simple, Basal, Soft flexible, Heavily veined, Glabrous, Ovate, Serrate |
| Flowers: | Spadix (& spathe), White, Purple, Apr-May |
| Fruit: | Berry (true), Orange, Red, Jun-Jul |
| Key ID Features: | |
| Leaves basal, most ovate with 5 leaflets 5-9cm long x 2-6cm wide; spathe with a purplish base, a snow-white cup, and a large hood with purple, green and white stripes. | |