Acacia melanoxylon - Blackwood Acacia - Evergreen Trees Direct

Acacia melanoxylon - Blackwood Acacia

Name: Acacia melanoxylon - Blackwood Acacia
Brand: Evergreen Trees Direct
SKU: ACAMELBL100L
Price: 1200.00 AUD
Availability: OutOfStock

$620.00

Tax included. Shipping calculated at checkout.

2000 in stock

Size: 100L

200L 100L 40cm/45L

Current Stock Height Guides

40cm/45L: 1.6m – 1.8m Approx.
100L: Enquire within for height guide information.
200L: 3m – 3.5m 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 Acacia melanoxylon - Blackwood Acacia

The Acacia melanoxylon – Blackwood Acacia is a fast-growing evergreen tree (6–30m H × 4–10m W) with a tall, upright trunk and dense canopy of dark green phyllodes. It looks excellent in large native gardens, rural shelterbelts, and public landscapes where height, structure, and durability are required. Creamy-yellow spherical flowers appear in spring to early summer, offering subtle seasonal interest.

Acacia melanoxylon – Blackwood Acacia thrives in full sun, handles clay, loam, or sandy soils, and tolerates low fertility, frost, and moderate drought. Commonly used for erosion control, windbreaks, and timber production. Suitable for revegetation projects, biodiversity corridors, and large-scale planting.

Low-maintenance and highly adaptable, this is a proven performer across temperate and cool regions. Best spaced at 5–7m for canopy development and airflow.

Key Information to Know

Evergreen / Deciduous

Acacia melanoxylon - Blackwood Acacia is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 6 m – 30 m

Mature Width: 4 m – 10 m

Acacia melanoxylon - Blackwood Acacia is expected to grow Approx 1.5 – 2.4 meters per year under optimal conditions..

Frost Tolerance

Is Acacia melanoxylon - Blackwood Acacia frost tolerant?

Acacia melanoxylon - Blackwood Acacia is Frost Hardy – Survives heavy and frequent frost without damage.

Flowering Information

Acacia melanoxylon produces pale cream to soft yellow globular flowers from late winter into early spring. The blooms appear in small clusters along the foliage, adding a gentle seasonal display that complements its dark, glossy green phyllodes.

Native Information

Is Acacia melanoxylon - Blackwood Acacia an Australian Native? Yes

Acacia melanoxylon - Blackwood Acacia is Native to South-eastern Australia, including Tasmania, Victoria, South Australia, and New South Wales, where it grows in woodlands, forests, and along riverbanks.

Wildlife Value

Its dense canopy offers excellent shelter for small birds and marsupials, while its pollen-rich flowers support native bees, hoverflies and beneficial insects that help sustain healthy biodiversity in the landscape.

Sunlight Information

Acacia melanoxylon - Blackwood Acacia will thrive best in:

Full Sun
Part Shade

Preffered Soil

Acacia melanoxylon performs best in well-drained loam or sandy loam soils and prefers slightly acidic to neutral conditions. It may struggle in heavy clay or poorly drained areas unless improved with organic matter to boost structure and drainage. Keep soil evenly moist during establishment, then gradually reduce watering as the tree matures and develops moderate drought tolerance.

Botanical Information

Common Name: Blackwood Acacia

Genus: Acacia

Botanical Species: melanoxylon

Family: Fabaceae

Botanical Name: Acacia melanoxylon

Landscape Uses

Shade Tree
Avenue Planting
Screening or Privacy
Council or Civic Landscapes
Rural Property Planting
Revegetation or Regeneration

Acacia melanoxylon - Blackwood Acacia works in an:

Australian Native Garden – celebrates local plants with natural character.
Woodland Garden – layered, naturalistic design under dappled light.
Formal Garden – structured, symmetrical design with clipped shapes.
Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Planting, Spacing & Care

How to Plant Acacia melanoxylon

Select a Sunny Spot: Ensure well-draining soil.
Prepare Soil: Integrate compost for enhanced growth.
Dig a Hole: Twice the container's width and equal depth.
Plant: Gently position Acacia in the hole, refill, and pat down.
Water: Thoroughly upon planting.

Hedging & Screening: Plant 2 m apart for a tall, dense screen.

Feature Tree: Plant 3 m apart to allow full form development.

Avenue Planting Trees:Suitable for avenue planting with 5–6 m spacing.

Caring for Acacia melanoxylon

Watering: Consistent in early life; lessen with age.
Pruning: Occasional shaping and dead branch removal.
Mulching: Apply around the base, avoid touching the trunk.
Pests/Diseases: Monitor for typical Acacia issues.

The stately Blackwood Acacia thrives in well-draining soil. Here's how to ensure proper drainage for your Acacia melanoxylon:

Ideal Drainage: Acacia melanoxylon prefers well-draining soil. If your existing soil is compact, amending it with organic material like compost or composted bark will improve drainage and aeration. This allows for good air circulation around the roots and prevents waterlogging.
Sandy Soil: While somewhat tolerant of sandy soil, it can dry out quickly. To maintain a healthy Acacia melanoxylon in sandy soil, be mindful of watering needs, especially during hot and dry periods. You may need to supplement with regular watering to ensure it doesn't become too dry.
Clay Soil: Clay soil can retain too much moisture, potentially leading to root rot. To improve drainage in heavy clay soils, mix in sand and organic matter. This creates a more porous structure that allows excess water to drain away and prevents waterlogging.

By providing good drainage, you'll create optimal conditions for your Acacia melanoxylon to thrive and reach its full potential.

Acacia melanoxylon - Blackwood Acacia is expected to grow Approx 1.5 – 2.4 meters per year under optimal conditions..

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

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

Thrives in

Full Sun
Part Shade

Frost Tolerance

Frost Hardy – Survives heavy and frequent frost without damage.

Drought Tolerance

As a young tree it benefits from regular watering, but once established Acacia melanoxylon develops moderate drought tolerance. It copes well with intermittent dry periods, though it performs best with occasional deep watering during extended drought.

Flowering Information

Does Acacia melanoxylon - Blackwood Acacia flower?

Yes - Flowers

Flowering Period:

Spring
Summer

Flower Type:

Fluffy

Flower Colour:

Yellow

Frequently Asked Questions

Q. Is this tree suitable for hedging or screening?
A. It’s not used for formal hedging but can be planted 4 – 5 m apart for windbreaks or informal large-scale screening.

Q. How fast does Acacia melanoxylon grow?
A. It grows at a moderate pace of around 50 – 80 cm per year, with faster growth in ideal conditions.

Q. What makes it a good feature tree?
A. Its tall, upright structure and dense green foliage provide shade, structure, and seasonal flowers in spring to early summer.

Q. Is it drought-tolerant?
A. Yes, once established, it can tolerate moderate drought conditions.

Q. What are the flowers like and when do they appear?
A. Small pale yellow flowers appear from spring to early summer, offering subtle seasonal interest.

Q. Does it tolerate frost or poor soil?
A. Yes, it’s highly adaptable, tolerates a wide range of soils, and is frost-resistant once mature.

Q. What kind of maintenance does it need?
A. It is generally low-maintenance, requiring regular watering when young and minimal pruning once mature.

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