Weed Potential 
As a weed Sydney Golden Wattle is invasive in regions that receive 500mm (20in) of rain per year and grows prolifically in woodlands, heathlands and forests particularly in South Australia and Victoria. 
 
The shrub grows in an open to exposed position on well drained moderately fertile soils and tolerates dry periods once established. It produces masses of seed with some germinating in 1 to 2 seasons while others remain dormant for up to 10 years. 

The shrub re-shoots after low intensity fire and as acacias fix nitrogen in the soil this additional fertility encourages seedling growth. The seeds are dispersed by bird’s uncontrolled selective pruning or water and in garden waste or soil.

Control methods include physically digging out seedlings checking that all the roots are removed. Shrubs can be ring barked or cut down and fruiting branches should be bagged and removed off site. Take care not to disturb the surrounding soil as this encourages dormant seeds to germinate. 

They may also have the trunk scraped or drilled, then paint with a non-selective herbicide. Small plant or seedlings may also be sprayed with a non-selective herbicide from spring to autumn. A follow up spray will be required over the next 2 years.