3rd white after Chardonnay and Sauvignon blanc. Can be used in blendings with the two varieties above. In Hunter Valley: low alcohol, high acidity, unoaked style. Develops great aroma complexity with bottle ageing. Barossa Valley: fuller-bodied, higher alcohol, oak maturation. Not so age worthy. Riverina of New South Wales: Semillon frequently affected by noble rot, making complex sweet wines.