In viticulture, colour plays an important role in various areas. It starts with the vineyard soil with an influence on the growth of the vines, continues with the colour of the foliage and the colour of the grapes with a direct influence on the colour of the wine, which is also of great importance in a wine evaluation.
The soil colour provides information about its composition with a considerable influence on growth and wine quality. For example, a reddish soil indicates iron content. This soil, known as Rotliegend or Terra Rossa, is particularly suitable for red wines. See a complete list under soil type.