The Australian Botanic Garden Mount Annan includes some fine examples of the critically endangered Cumberland Plain Woodland. These woodlands are under threat from the highly invasive African Olive tree, which can shade out native plants and eventually dominate the woodland.
Research into African Olive ecology and control over the past 10 years at the Australian Botanic Garden Mount Annan has led to highly successful control measures. Research is now focused on techniques to restore the original woodland vegetation in areas that have been cleared of olive forest.