Callistemon rigidus
Stiff Bottlebrush, Bottlebrush Tree.
| Family |
| Myrtaceae |
| Genus |
| Callistemon |
| Species |
| rigidus |
| Category |
| Tropicals, Woody |
| Type |
| Shrub (evergreen) |
| USDA Hardiness Zone |
| 9 - 10 |
| Canadian Hardiness Zone |
| Requires cold season protection under glass. |
| RHS Hardiness Zone |
| H2 - H4 |
| Temperature (°C) |
| -12.2 - 4.5 °C |
| Temperature (°F) |
| 10 - 40 °F |
| Height |
| 1 - 2.4 m |
| Spread |
| 2 - 3 m |
| Landscape |
| Uses such as a specimen plant or hedge. |
| Shape |
| Upright and spreading. |
| Pests |
| May be prone to glasshouse red spider mite, mealybugs and scale insects under glass. |
| Leaf Description |
| Aromatic, linear to lance-shaped, large, deep green leaves. |
| Flower Description |
| Red flower spikes that are shaped like bottle brushes |
| Fruit Description |
| Hard seed round capsules, 1 cm long, that occur in tight clusters around the stem. |
| Notable Specimens |
| National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom. |
| Propagation |
| Propagate by seed or from semi-hardwood cuttings. |