Western Australian shrub or small tree with broad oblong toothed leaves and brilliant short scarlet-and-grey cylindrical flower spikes through winter. Among the most spectacular of the banksias.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 9–10 | −6.7 °C to 4.4 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H3 | −5 °C to 1 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 9 | −1 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 4–5 | 0 °C to 10 °C | Plant tolerates down to this zone |
Growing notes
- Endemic to southwestern Western Australia — Mediterranean winter-rainfall climate
- WARNING: Phosphorus sensitive — never use phosphate fertilisers
- Major cut-flower export crop — the scarlet flower spikes hold colour for weeks in the vase
- Demanding cultivation — sharp drainage essential, sulks outside Mediterranean climate
Categories
Related plants
Cross-check Scarlet banksia against your zones