The vineyards are located on soils dating from the end of the lower cretaceous to the upper cretaceous periods. On an impervious marly layer are found prevalently various types of soil, but always sandy.

The vineyards of Valbonne are part of the appellation Cotes du Rhone and Cotes du Rhone Villages.

During the last 25 years, the association has almost restored, with new varietals, the vineyards which the Carthusian Order cultivated.

In fact, the grapevines planted by the Carthusian community had been abandoned completely after their departure in 1901. The inventory done in 1907, at the time of its sale at public auction, mentioned 17 hectares of grapevines, of which at least 3 hectares were of the pinot variety, according to the conserved plans.
 
 
The mention of a still leads us to think that this vineyard was also intended for the production of alcohol which went into making Grande Chartreuse liqueur.

Also recovered were some large barrels, which can still be admired in a cool and humid cellar dating from the 13th century.