Callistemon sieberi
Callistemon sieberi, commonly known as the River Bottlebrush, is a resilient Australian native shrub known for its soft-textured, linear foliage and pale yellow to creamy-white bottlebrush flowers. These eye-catching blooms appear in spring and attract birds and pollinators, adding biodiversity to the garden.
They look excellent when planted along waterways, in native gardens, or used as informal screens. Callistemon sieberithrives in full sun to part shade, tolerates frost and occasional waterlogging, and adapts well to both moist and drier conditions with minimal maintenance.
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Product specification
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Approx. 30 – 60 cm per year
Evergreen (foliage year round)
Frost Hardy – Survives heavy and frequent frost without damage.
Callistemon sieberi is considered:
Yes
Flower Colour: Yellow
Flower Type:
Flowering Period
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Planting Guide
Plant Spacing
How to Plant Callistemon sieberi
Root Ball Dimensions (Width × Depth) For Planting
Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.
- 30cm Pot: 33cm (W) × 30cm (D)
- 40cm/45L Pot: 44cm (W) × 41.5cm (D)
- 50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
- 100L Bag: 50.6cm (W) × 52.8cm (D)
- 150L Bag: 66cm (W) × 55cm (D)
- 200L Bag: 71.5cm (W) × 60.5cm (D)
- 300L Bag: 88cm (W) × 63.8cm (D)
- 400L Bag: 99cm (W) × 66cm (D)
- 500L Bag: 122cm (W) × 66cm (D)
- 750L Bag: 134cm (W) × 69cm (D)
- 1000L Bag: 146.3cm (W) × 71.5cm (D)
- 2000L Bag: 176cm (W) × 82.5cm (D)
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