Callistemon Viminalis 'Slim'
Callistemon Viminalis 'Slim'
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Current Stock Height Guides
Current Stock Height Guides
Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you mustconfirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.
Root Ball Dimensions (Height & Width)
Root Ball Dimensions (Height & Width)
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)
Trade Customers
Trade Customers
We supply advanced trees to landscapers, developers, architects, and councils Australia-wide. Trade clients receive fast quotes, expert advice, and access to premium stock with reliable freight.
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About Your New Callistemon Viminalis 'Slim'
Callistemon viminalis ‘Slim’ is a compact, narrow-growing bottlebrush ideal for tight spaces, hedging, or feature planting in modern gardens. This Australian native cultivar maintains a naturally upright form, typically reaching around 3 metres tall with a spread of just 1–1.5 metres, making it perfect for small gardens, along driveways, or beside fences.
‘Slim’ produces vibrant red bottlebrush flowers in spring and autumn, attracting birds, bees, and pollinators. The foliage is dense and evergreen, providing year-round screening and structure. Hardy and low maintenance, it thrives in full sun, tolerates most soil types, and handles both drought and light frost once established. Responds well to pruning after flowering to maintain shape and density.
Uses in my Garden
Uses in my Garden
Callistemon Viminalis 'Slim' works in an:
Is Callistemon Viminalis 'Slim' Evergreen or Deciduous?
Is Callistemon Viminalis 'Slim' Evergreen or Deciduous?
Callistemon Viminalis 'Slim' is an Evergreen (foliage year round) Tree
Mature Height & Width
Mature Height & Width
Mature Height: 2.5 – 3 meters
Mature Width: 1 – 1.5 meters
Callistemon Viminalis 'Slim' is expected to grow 20 – 40 cm per year.
Growth Rate of Callistemon Viminalis 'Slim'
Growth Rate of Callistemon Viminalis 'Slim'
Callistemon Viminalis 'Slim' is expected to grow 20 – 40 cm per year.
They are considered to have a:
Frost Tolerance & Ideal Climate to plant Callistemon Viminalis 'Slim'
Frost Tolerance & Ideal Climate to plant Callistemon Viminalis 'Slim'
Is Callistemon Viminalis 'Slim' frost tolerant?
Callistemon Viminalis 'Slim' is Frost Tolerant – Can handle light to moderate frost once established.
Does Callistemon Viminalis 'Slim' Flower?
Does Callistemon Viminalis 'Slim' Flower?
Callistemon viminalis ‘Slim’ produces bright red bottlebrush flowers from spring through summer, with a lighter repeat flush in autumn. The vivid blooms sit neatly along its narrow, upright branches, giving a bold seasonal display without adding bulk to its slender habit.
Does Callistemon Viminalis 'Slim' flower?
Flowering Period:
Flower Type:
Flower Colour:
Red
Is Callistemon Viminalis 'Slim' an Australian Native Tree?
Is Callistemon Viminalis 'Slim' an Australian Native Tree?
Yes
Callistemon Viminalis 'Slim' is Native to Derived from Callistemon viminalis, which is native to eastern Australia, particularly along watercourses and moist soils in Queensland and New South Wales.
What is the Wildlife Value of Callistemon Viminalis 'Slim' ?
What is the Wildlife Value of Callistemon Viminalis 'Slim' ?
Its nectar-rich flowers attract honeyeaters, native bees, butterflies and other beneficial insects, while the dense, upright foliage provides shelter for small birds. Its long flowering period offers ongoing support for pollinators across much of the year.
How much Sunlight does Callistemon Viminalis 'Slim' need?
How much Sunlight does Callistemon Viminalis 'Slim' need?
Callistemon Viminalis 'Slim' will thrive best in:
Preferred Soil?
Preferred Soil?
Callistemon viminalis ‘Slim’ performs best in well-drained sandy or loam soils and prefers slightly acidic to neutral conditions. It tolerates nutrient-poor soils but may struggle in heavy clay or waterlogged sites unless improved with organic matter and coarse material to boost drainage. Keep soil evenly moist during establishment, then transition to deep, occasional watering as it matures and develops excellent drought resilience.
Is Callistemon Viminalis 'Slim' Drought Tolerant?
Is Callistemon Viminalis 'Slim' Drought Tolerant?
Is Callistemon Viminalis 'Slim' Drought tolerant?
As a young tree it requires regular watering, but once established Callistemon ‘Slim’ develops excellent drought tolerance. It thrives in hot, dry and coastal environments and maintains strong flowering and a tidy, columnar form with minimal supplementary watering.
Planting Information
How To Plant Your Callistemon Viminalis 'Slim'
How To Plant Your Callistemon Viminalis 'Slim'
Recommended Planting Spacing For Your Callistemon Viminalis 'Slim'
Recommended Planting Spacing For Your Callistemon Viminalis 'Slim'
Callistemon Viminalis 'Slim' is expected to grow 20 – 40 cm per year.
Long Term Care For Your Callistemon Viminalis 'Slim'
Long Term Care For Your Callistemon Viminalis 'Slim'
Planting Your Callistemon Viminalis 'Slim' in Different Soil
Planting Your Callistemon Viminalis 'Slim' in Different Soil
Root Ball Dimensions (Width × Depth) For Planting
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)
Frequently Asked Questions
Frequently Asked Questions
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