Acacia Species

Also known as:
Wattle
Family:
Fabaceae
Origin:
Australia

General description

Shrubs to large trees. Two groups of Acacias: those with pinnate leaves (leaflets arranged in two rows on either side of stalk); & those with flat phyllodes (extensions of stem). Flowers are spikes or many-flowered round heads & usually yellow or cream. Long flat seedpods.

Roadsides, waste places, shrubland. Thrive in most areas but prefer poor or stony soil with good drainage & full sun.

Seed prolifically & regenerate well after fire. Some species form dense stands by suckering.

Dense stands are a serious threat to regenerating bush. Nitrogen fixer.

Site management

Succeeded in tall canopy habitats by taller native species where their seedlings exist & have some space. These sites can be left to regenerate (20-40 years), aided by selective slashing. Don’t mow site, as wattle recovers faster than native species. & the higher light levels induce more seed germination. Clear all roads, quarries & other sources. Maintain native groundcover wherever possible.

Recommended approaches

1. Hand pull seedlings minimising soil disturbance.
2. Make cuts at 100ml spacings around the base of tree & fill each cut with 5ml triclopyr undiluted.
3. Ringbark trees; ensure danger to public from falling branches is minimised. Paint ringbarked area immediately with herbicide (50ml triclopyr/1L or 50ml Tordon BK/1L).
4. Where trees have been felled, paint stump (50ml triclopyr/1L or 50ml Tordon BK/1L).
5. Spray where appropriate, spring - summer, (5g metsulfuron + 10ml penetrant/10L water or
60ml Tordon BK+10ml penetrant/10L).

Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.

Similar species

willow leaved hakea
Hakea salicifolia

brush wattle
Paraserianthes lophantha

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