A plant introduced with a practical purpose along the New South Wales (NSW) coast eventually became a major environmental weed. South African bitou bush was deliberately planted along the NSW coastline between 1946 and 1968 to help stabilise sand dunes, according to the NSW Environment and Heritage department. The fast-growing shrub later spread rapidly and is now found along 46% of the state's coastline, with some infestations extending up to 10 kilometres inland. What was once used to control shifting sand has since become a threat to native coastal vegetation and wildlife, prompting long-running efforts to contain and remove it.
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