Callistemon viminalis - Evergreen Trees Direct

Callistemon viminalis

Name: Callistemon viminalis
Brand: Evergreen Trees Direct
SKU: CALVIM45L
Price: 250.00 AUD
Availability: InStock

$250.00

Tax included. Shipping calculated at checkout.

Size: 40cm/45L

40cm/45L

Current Stock Height Guides

40cm/45L: 1.3m – 1.6m Approx.

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.

About Callistemon viminalis

Callistemon viminalis, known as the Weeping Bottlebrush, is a striking evergreen small tree or large shrub with cascading branches and vibrant red bottlebrush flowers. Its flowing form and seasonal blooms create an eye-catching display that also supports local wildlife by attracting birds and pollinators.

They look excellent when used as a feature tree, lining driveways, or planted in groups along riparian zones. Callistemon viminalis thrives in full sun, handles poor soils, and offers moderate drought tolerance once established. With minimal maintenance and year-round appeal, it’s a resilient choice for both ornamental and habitat-focused landscapes.

Key Information to Know

Evergreen / Deciduous

Callistemon viminalis is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 4m - 8m Approximately

Mature Width: 4m – 5m

Callistemon viminalis is expected to grow Approx. 50 – 100 cm per year.

Frost Tolerance

Is Callistemon viminalis frost tolerant?

Callistemon viminalis is Frost Hardy – Survives heavy and frequent frost without damage.

Flowering Information

Callistemon viminalis produces masses of bright red, pendulous bottlebrush flowers from spring through summer, with a lighter flush in autumn. The vibrant blooms hang gracefully from the weeping branches, creating a dramatic and highly ornamental seasonal display.

Native Information

Is Callistemon viminalis an Australian Native? Yes

Callistemon viminalis is Native to Eastern Australia, particularly Queensland and New South Wales, where it grows naturally along watercourses and in open forests.

Wildlife Value

Its nectar-rich flowers attract honeyeaters, native bees, butterflies and other beneficial insects, while the dense foliage provides shelter and nesting habitat for small birds. Its long flowering season makes it a valuable support plant for pollinators throughout much of the year.

Sunlight Information

Callistemon viminalis will thrive best in:

Full Sun

Preffered Soil

Callistemon viminalis performs best in well-drained sandy or loam soils and prefers slightly acidic to neutral conditions. It tolerates poorer soils but may struggle in heavy clay or waterlogged areas unless improved with organic matter and coarse material to increase drainage. Keep soil evenly moist during establishment, then reduce watering as the tree matures and develops its characteristic high drought resilience.

Botanical Information

Common Name: Weeping Bottlebrush

Genus: Callistemon

Botanical Species: viminalis

Family: Myrtaceae

Botanical Name: Callistemon viminalis

Landscape Uses

Screening or Privacy
Shrubs
Rural Property Planting
Revegetation or Regeneration
Council or Civic Landscapes
Plant in Pots (or) Suitable for Pots

Callistemon viminalis works in an:

Australian Native Garden – celebrates local plants with natural character.
Wildlife Garden – planting to attract birds, bees, and pollinators.
Coastal Garden – relaxed, seaside feel with hardy, textural plants.
Woodland Garden – layered, naturalistic design under dappled light.
Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Planting, Spacing & Care

How to Plant Callistemon viminalis

Site Selection: Choose a sunny spot with well-draining soil.
Soil Preparation: While adaptable to different soils, amending with compost can foster growth.
Hole Digging: Prepare a hole approximately double the root ball's size.
Planting: Position the Callistemon ensuring it's level with the ground, fill with soil, and water generously.

Hedging & Screening: Plant 1 m apart for dense screening.

Feature Tree: Allow 2 m – 3 m between trees to highlight weeping habit.

Avenue Planting Trees: Use 3 m – 4 m apart for a flowing avenue effect.

Caring for Callistemon viminalis

Watering: Regular watering during the initial phase promotes establishment. Thereafter, it can handle dry spells.
Mulching: Apply organic mulch around the base to retain soil moisture and deter weeds.
Pruning: Lightly prune after the flowering season to maintain shape and boost new growth.

Optimizing Soil for Vibrant Blooms and Attractive Foliage

Ideal Drainage: Callistemon species do best in well-drained, slightly acidic soils.

Well-Draining Soil: Perfect for promoting vibrant flowering and health.

If you have the following soil, here are some tips for you:

Sandy Soil: Excellent for Callistemon; maintain fertility with controlled-release, low-phosphorus fertilizers.
Clay Soil: Typically challenging for Callistemon; heavily amend with gypsum, sand, and compost for better drainage and root health.
Loamy Soil: Very good if well-drained; avoid over-enrichment which can lead to lush growth at the expense of blooms.
Peaty Soil: High organic content is beneficial; ensure it is well-drained with the addition of perlite or sand to avoid root rot.

Callistemon viminalis is expected to grow Approx. 50 – 100 cm per year.

Fast Growth Rate

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)

Ideal Conditions

Tropical QLD (Cairns, Townsville)
Subtropical QLD (Brisbane, Gold Coast, Sunshine Coast)
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

Thrives in

Full Sun

Frost Tolerance

Frost Hardy – Survives heavy and frequent frost without damage.

Drought Tolerance

As a young tree it requires regular watering, but once established Callistemon viminalis develops excellent drought tolerance. It thrives in hot, dry and coastal environments and maintains reliable flowering and its graceful weeping habit with minimal supplementary watering.

Flowering Information

Does Callistemon viminalis flower?

Yes - Flowers

Flowering Period:

Summer
Spring
Year-Round

Flower Type:

Fluffy

Flower Colour:

Red

Frequently Asked Questions

Frequently Asked Questions

What can I do to enhance the flowering of Callistemon viminalis? A balanced fertilizer after the primary flowering season can invigorate subsequent blooms.
Is it suitable for coastal areas? Yes, Callistemon viminalis displays good salt tolerance, making it apt for coastal gardens.

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