Japanese Cobra Lily, Dominatrix Jack-in-the-Pulpit
Arisaema thunbergii subsp. urashima (Japanese Cobra Lily) is a showy tuberous perennial boasting a long, curious, maroon-hooded spathe enclosing a cylindrical, maroon spadix with a long, whip-like tail that can reach 18 in. (45 cm). Blooming in late spring to early summer, the blossoms emerge from the ground near the base of the leaf stem and are topped by a large, solitary horizontal leaf divided into 11-15 narrowly lance-shaped, dark green leaflets. Fertilized flowers will produce striking red berries that mature in mid to late summer after the leaves have faded. All parts of the plant contain calcium oxalate and are poisonous. A most ravishing plant for the woodland garden, it is easy to grow and requires very little care. The entire plant contains crystals of calcium oxalate and is poisonous.
| Hardiness |
5 - 9 |
|---|---|
| Plant Type | Bulbs, Perennials |
| Plant Family | Araceae |
| Genus | Arisaema |
| Common names | Cobra Lily |
| Exposure | Partial Sun, Shade |
| Season of Interest |
Spring (Mid, Late) Summer (Early, Mid, Late) |
| Height |
1' - 2' (30cm - 60cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Showy |
| Tolerance | Full Shade, Wet Soil |
| Attracts | Birds |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
| Hardiness |
5 - 9 |
|---|---|
| Plant Type | Bulbs, Perennials |
| Plant Family | Araceae |
| Genus | Arisaema |
| Common names | Cobra Lily |
| Exposure | Partial Sun, Shade |
| Season of Interest |
Spring (Mid, Late) Summer (Early, Mid, Late) |
| Height |
1' - 2' (30cm - 60cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Showy |
| Tolerance | Full Shade, Wet Soil |
| Attracts | Birds |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
How many Arisaema thunbergii subsp. urashima (Japanese Cobra Lily) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Arisaema thunbergii subsp. urashima (Japanese Cobra Lily) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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