You can have a formal garden using Australian plants. Tall, medium and small hedges can be achieved using varieties that grow vertically with a minimum effort of trimming. As an added extra, you can have varieties that attract Honeyeater birds.
Small (1m)
Medium (1m - 2m)
Beaufortia squarrosa ‘Pencil Perfect’ pbr
Calothamnus quadrifidus “pencil” pbr pending
Correa backhousiana var corriaceae (shade)
Grevillea Honeybird “Pink” pbr
Grevillea Honeybird “Yellow” pbr
Hakea obtusa
Leptospermum serecium “Little Silver”
Melaleuca ringens “Coastal Column” pbr
Melaleuca urceolaris
Scholtzia involucrata (column form)
Tall (3m)
Actinostrobus pyramidalis
Adenanthos cygnorum “Perth Pencil”
Adenanthos sericeus “Pencil Perfect”*
Banksia occidentalis*
TRIM TO DESIRED SHAPE
Legend:
* will grow in shade
# very narrow