Callistemon rigidus (Stiff Bottlebrush, Bottlebrush Tree.)
Botanical Information
| Family | Myrtaceae |
| Genus | Callistemon |
| Species | rigidus |
| Category | Tropicals, Woody |
| Type | Shrub (evergreen) |
| Origin | Australia. |
Details
| USDA Hardiness Zone | 9 - 10 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | Requires cold season protection under glass. |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H2 - H4 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -12.2 - 4.5 °C |
| Temperature (°F) | 10 - 40 °F |
| Height | 1 - 2.4 m |
| Spread | 2 - 3 m |
| Flowering Period | May, June |
Description and Growing Information
| Shape | Upright and spreading. |
| Landscape | Uses such as a specimen plant or hedge. |
| Propagation | Propagate by seed or from semi-hardwood cuttings. |
| Pests | May be prone to glasshouse red spider mite, mealybugs and scale insects under glass. |
| Notable Specimens | National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom. |
| 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. |
Photographs
Callistemon rigidus, form. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.
Callistemon rigidus, leaf. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.
Callistemon rigidus, fruit. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.
Callistemon rigidus, flower bud. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.
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