Callistemon Viminalis 'Slim'

• Screening or Privacy
• Feature Tree
• Driveway Border
• Council or Civic Landscapes
• Underplanting

Callistemon Viminalis 'Slim' works in an:

• Australian Native Garden – celebrates local plants with natural character.
• Formal Garden – structured, symmetrical design with clipped shapes.
• Modern Garden – sleek, minimal, and design-led planting.
• Wildlife Garden – planting to attract birds, bees, and pollinators.
• Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Callistemon Viminalis 'Slim' is an Evergreen (foliage year round) Tree

Mature Height: 2.5 – 3 meters

Mature Width: 1 – 1.5 meters

Callistemon Viminalis 'Slim' is expected to grow 20 – 40 cm per year.

Callistemon Viminalis 'Slim' is expected to grow 20 – 40 cm per year.

They are considered to have a:

• Medium Growth Rate
• Fast Growth Rate

Is Callistemon Viminalis 'Slim' frost tolerant?

Callistemon Viminalis 'Slim' is Frost Tolerant – Can handle light to moderate frost once established.

• Tropical QLD (Cairns, Townsville)
• Subtropical QLD (Brisbane, Gold Coast, Sunshine Coast)
• Inland QLD (Darling Downs, Central QLD)
• Northern NSW (Byron, Coffs, Armidale)
• Sydney & Central Coast
• South Coast NSW (Illawarra to Bega)
• Inland NSW / Tablelands (Orange, Bathurst, Canberra)
• Melbourne & Surrounds (Metro, Bayside, Geelong, Bellarine, Mornington)
• Western District & Central VIC (Ballarat, Bendigo, Hamilton)
• Gippsland (Latrobe Valley, East Gippsland)
• Adelaide Metro & Coastal
• Adelaide Hills & Barossa

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?

• Yes - Flowers

Flowering Period:

• Spring
• Autumn

Flower Type:

• Pollinator-attracting

Flower Colour:

Red

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.

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.

Callistemon Viminalis 'Slim' will thrive best in:

• Full Sun

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?

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.