Terre des Dames still has the same structure as it did 200 years ago: small plots on different levels, surrounded by ancient stone walls and wild garrigue. Here, of course, no pesticides or synthetic fertilizers are applied. For most of the year, a cover of natural herbs favors an ecological balance in the soil. The oldest vine is 100 years old, others around 50 – 70 years old. All grapes are harvested and sorted by hand. Certified organic (Ecocert) since 2002. The particular microclimate of this area, along with the underground springs and rivers, give freshness to the vine roots, maintained by the large barriers of trees and shrubs between the plots. The biodiversity also protects against disease. The soil is clay, limestone and flint and full of marine fossils. Despite the arid climate, underground streams beneath the estate provide irrigation to the vines.