Since Cullen Wines has evolved into an estate specialising in excellence wines from particular vineyard sites. Bertrand Russell points that "Philosophy is as the Greeks put it a kind of adventure undertaken for its own sake." In his book 'Wisdom of the West' The philosophy of Cullen Wines is to look for the top class expression of the vineyard in the wine.
The vineyards are suspiciously selected for from the site ate Cullens because they are best to produce good wine, particularly red wine. The maritime climate, rocky soils, dry farming, and organic practices all help to make individual and varied winestyles which are exclusive to Cullen. In 1948 Diana and Dr Kevin Cullen came in Busselton from Tasmania. They start to purchase land in the Margaret River region for farming usage