Joly studied at Columbia University and subsequently worked for J.P. Morgan in New York City as an investment banker.
He was later posted to London, but left banking in 1977 to take over his family's wine estate, Château de la Roche aux Moines in Savennières.
He encountered a book on biodynamic farming and took an active interest in the ideas found there, and from 1980 started to experiment with them in his wine estate.
[2] Coulée de Serrant is among the very few single vineyards monopole to be granted its own Appellation d'Origine Contrôlée; others include Romanée-Conti, La Tâche, and Château-Grillet.
His book for winegrowers is called Le Vin du ciel à la terre and has been through several editions.