1. Banksia integrifolia 'Sentinel' (Sentinel Coast Banksia)
'Sentinel' is the narrow columnar Coast Banksia bred for tight native screening. Silver-backed sclerophyll foliage, year-round yellow brush flowers that fuel honeyeaters, and a strict 1.5 to 2m wide habit that fits where standard Banksias won't. The native vertical screen that's also bird habitat.
- Type
- Columnar evergreen native screen tree
- Height
- 5 to 6m
- Width
- 1.5 to 2m
- Growth rate
- Moderate
- Foliage
- Dark green with silver undersides, evergreen
- Flowers
- Year-round yellow brush flower spikes
- Form
- Narrow columnar
- Conditions
- Full sun, well-drained sandy soil, salt and drought tolerant
- Maintenance
- Almost none. Self-shaping columnar habit.
- Best for
- Narrow native privacy screens, vertical accent at hedge corners, year-round honeyeater habitat.
Why choose it
Coast Banksias have proteoid roots that pull water and nutrients from poor sandy soils, plus silver-backed sclerophyll foliage that holds form on minimal water once established. 'Sentinel' concentrates this constitution into a narrow column that gives a privacy screen plus genuine native habitat without dominating the bed.
Perfect pair
Plant in rows of three or five for a vertical native screen, or beside Eucalyptus cinerea for layered silver tones.
Tips for planting
Absolutely no phosphorus fertiliser. Banksias evolved on phosphorus-deficient soils and standard fertilisers will kill them. Mulch with eucalyptus chip.
The narrow native Banksia that screens and feeds the birds.
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