Our terroir and ecosystem

Our terroir and ecosystem

Eager to protect his terroir and ecosystem, The Fabien Castaing’s vineyards are committed to environmental values such as:

  • The “Qualenvi” quality policy from the “Vignerons Indépendants de France” (French independent winemakers)
  • The HEV (High Environmental Value) certification level 3
  • The Ecocert FR-BIO certification for organic farming


With a soil, a subsoil and cap rocks, the Monbazillac and Bergerac terroirs are mostly based on clay-limestone with a few gravely soils.

In Gascogne and Cahors, the terroir is mostly made of clay soils on a limestone base; In Gaillac, old alluvium terraces prevail.

Each vineyard’s geomorphological features ensure that the vines have the proper environment to make true quality wines.

For an effective use of natural resources, the way vine is cultivated can be adapted to the soil of each plot, while complying to eco-friendly specifications.

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