Hickory Wattle/Lightwood/Fish Wattle
Acacia implexa
A hardy and adaptable small to medium-sized tree, Acacia implexa – commonly known as Hickory Wattle, Lightwood or Fish Wattle – is a graceful summer-flowering species well suited to dryland gardens, habitat plantings, windbreaks and revegetation projects. Typically reaching 6–12 m in height, it forms a spreading, sometimes weeping canopy with greyish rough bark and long, sickle-shaped phyllodes/leaves.
Native to a broad range of environments from coastal Queensland to central Victoria and inland NSW, Hickory Wattle thrives in dry schlerophyll woodlands and heavier soils such as clays and alluvials, but can also persist in sandy and shallow soils. Its resilience, longevity, and capacity to flower when few other plants do make it highly valuable for habitat planting and restoration work.
- Long-lived tree to 12 m H × 4–8 m W with spreading or weeping form
- Grey bark, pale green to grey-green sickle-shaped phyllodes
- Pale yellow globular flower heads from mid to late summer
- Hardy in clay, loam and shallow soils; resents waterlogging
- Frost, drought, wind and fire tolerant
- Useful for erosion control
- Bark used traditionally for string, rope, medicine, fishing and tanning
- Flowers provide valuable summer pollen for beneficial insects
- Seeds attract parrots, pigeons, rosellas, ants and other wildlife
- Dense canopy and branching habit offer excellent bird habitat and shelter
Growing Conditions
Prefers well-drained soils in full sun or open woodland settings. Thrives in dry hills, rocky outcrops, and heavier soils, but adaptable to a wide range of conditions. Avoid waterlogged or compacted soils. Very low maintenance once established. May sucker if cut back hard or root systems are damaged – a trait that also supports soil stabilisation.
Ecological & Cultural Uses
Highly valued by First Nations Australians, Hickory Wattle was used for medicine, flour, fish stunning, and toolmaking. Its bark and foliage are also sources of natural dye: yellow with alum, and brown with copper mordants. It provides summer nectar and pollen when other flowers are scarce, supporting insect biodiversity and attracting insectivorous birds including cuckoo-shrikes. Seeds are a food source for parrots and native pigeons. Wasps and ants use the tree for nesting, and their galls and tunnels become homes for other invertebrates.
In the Garden
An elegant summer-flowering wattle suited to open gardens, paddock plantings, rockeries and habitat-focused designs. Shallow root system makes it safe to plant near paths and structures. Offers filtered shade and doesn’t interfere with utilities. Light pruning after flowering promotes better blooming the following year.
Distinguished from Blackwood (Acacia melanoxylon) by its longer curved phyllodes, later flowering time, and preference for drier habitats. A dependable, resilient tree for both ornamental and functional plantings.
