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Acacia melanoxylon (Blackwood)

Acacia melanoxylon (Blackwood)

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Acacia melanoxylon, commonly known as Blackwood, is a tall, elegant Australian native tree belonging to the Fabaceae family. It naturally grows along the southeastern coast of Australia and has been widely cultivated in other regions as an ornamental. Blackwood favors disturbed areas, woodlands, and riparian zones, thriving in well-drained soils with full sun exposure.

The tree is recognizable for its spherical cream-colored flower heads, which appear in spring to early summer, and its glossy dark green foliage. It produces long, straight pods containing seeds that are easily dispersed by water and human activity. Blackwood can also spread via root suckers, forming large clonal stands in suitable conditions.

This species is highly valued for timber, ornamental use, and ecological plantings, though care is needed to manage root suckering if grown in gardens or urban settings.

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Mature height

15–30 m

Mature width

8–15 m

Spacing

5–8 m

Evergreen/Deciduous

Evergreen

Foliage

Foliage: Dark green Flowers: Cream Pods/Seeds: Brown

Flowering Period & Fruit Development/Harvest

Spring to early Summer

Sun tolerance

Full sun to partial shade

Maintenance

Moderate; monitor for root suckering, thrives in fertile, well-drained soils

Root System

Deep, fibrous, capable of suckering