Arisaema ringens (Cobra Jack)
Botanical Information
| Family | Araceae |
| Genus | Arisaema |
| Species | ringens |
| Category | Bulbs, Perennials |
| Origin | Japan, Korea and China. |
Details
| USDA Hardiness Zone | 6 - 9 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 5a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H3 - H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -23 -(-1) |
| Temperature (°F) | -10 - 30 |
| Height | 30 cm |
| Spread | 20 cm |
| Growth | Fast |
| Flowering Period | April, May, June, July |
Description and Growing Information
| Propagation | By seed or offset. |
| Cultivation | Grows in humus-rich, moist, well-drained soil in partial to full shade. Caution should be used around the planting site in early spring as the plant is late to appear. |
| Pests | No serious insect or disease problems. |
| Leaf Description | Produces two glossy leaves with three elliptic leaflets growing on a single stalk from each tuber. |