Crambe cordifolia
Colewort
| Family |
| Brassicaceae |
| Genus |
| Crambe |
| Species |
| cordifolia |
| Category |
| Perennials |
| Pronunciation |
| USDA Hardiness Zone |
| 7b - 8a |
| Canadian Hardiness Zone |
| 7b |
| RHS Hardiness Zone |
| H5 (Observed growing well in H7 in a protected location) |
| Temperature (°C) |
| -15 to -10 |
| Temperature (°F) |
| 5 - 14 |
| Height |
| 1.2-1.8 m |
| Spread |
| 60-90 cm |
| Landscape |
| This architectural plant can be used in the mid section of the border or in the back, either as a focal plant or in larger grouping if space is available. |
| Cultivation |
| It is easy to grow in any soil, in light shade or sun. |
| Growth |
| Medium |
| Habitat |
| Caucasus region, Afganistan and Iran. |
| Leaf Description |
| The heart-shaped leaves are large, 50 cm across and coarse. They form a massive, dark green rosette. |
| Flower Description |
| In the early summer, 2 - 3 tall flowering stalks appear bearing numerous white flowers. When in flower, Crambe cordifolia looks like a spectacular white cloud suspended above the leaves. |
| Propagation |
| From seed; direct sow outdoors in autumn or winter sow in containers in a cold frame or unheated greenhouse. Pencil thick root cuttings in early spring also work. |