The Guillaume family is one of the leading plant nursery owners in Europe, providing grafts to most of the top wineries in Burgundy, Champagne, Piedmont and Tuscany. They are vineyard consultants for a 'who's who' of European wineries, from Domaine Romane Conti to Isole e Olena to Chteau Haut Brion. The Guillaumes understand which clones (there are many) of Pinot Noir, Chardonany, Sangiovese, etc etc, do best in which type of soil or climate. Here in lies there incredible value to wineries all over the world. No other nursery comprehends terroir like the Guillaumes.