Echium wildpretii
Tower of Jewels
| Family |
| Boraginaceae |
| Genus |
| Echium |
| Species |
| wildpretii |
| Category |
| Perennials, Woody |
| USDA Hardiness Zone |
| 10 a - 10b |
| Canadian Hardiness Zone |
| Greater than 9a |
| RHS Hardiness Zone |
| H2 |
| Temperature (°C) |
| 1 to 5 |
| Temperature (°F) |
| 34 to 40 |
| Height |
| 1.5 - 2.5 m |
| Spread |
| 0.1 - 0.5 m |
| General Description |
| E. wildpretii has a single, unbranched stem reaching 2 m in height . Silver-blue leaves radiate densely from the base up, becoming more sparse as they reach the clustered flowers. |
| Landscape |
| City and courtyard gardens, flower borders and beds, wall side borders. |
| Cultivation |
| Under glass grow in a loam-based potting compost in full light. |
| Shape |
| Upright, erect, to spike-like. |
| Pests |
| Outdoors: slugs. Indoors: glasshouse whitefly, glasshouse red spider mite, and vine weevils. |
| Habitat |
| Coastal. |
| Leaf Description |
| Silver-blue, hairy. Measuring about 50 cm in length. |
| Flower Description |
| Small red flowers bloom in the early summer. |
| Notable Specimens |
| Chelsea Physic Garden, London, United Kingdom. |
| Propagation |
| Propagate by seed. |