The soil

The plantations are in volcanic ash sanding, either in holes or ditches, which may be around the parameter, or throughout the farm. The slopes are not high, at altitudes between 200 and 500 meters and at the level of the sea as the highest peak of the island is 670 mts. The soil is varied, and includes red soils on old, deep, basaltic formations. This soil appears as fossil soil, having been covered by more recent volcanic eruptions, or colluvial deposits.

 

The soil is reddish, textured silt clay, with a content of organic material that ensures a Nitrogen supply – a requirement of the vine. The contents of main macronutrients (N, P,K) are optimal, and the presence of carbonates free to make a basic pH.

 

The island of Lanzarote has got soils that are characterized by the following common features:

 

– low content in organic matter

– weak biological activity

– alkaline reaction

– surface textures of sandy-like trend

– accumulation of carbonates and sulphates

– amendments to the soil surface such as the presence of desert pavement, scabs from sealed, etc.

 

The soils in which they build the vineyards are volcanic soils, well-differentiated, even red soils, on deep and old, basaltic formations. They appear as fossil soils having been covered by more recent volcanic eruptions or flood deposits.

 

This lapilli layer or “picon” covers the topsoil in the vineyard facilitating the rapid filtration of the rain, avoiding the evaporation of the topsoil and maintaining constant soil temperature (thermo-regulator effect).

 

The surface of the greater part of the vineyards is covered with black volcanic ash that prevents the growth of other vegetation; however it possesses excellent retention properties of the water coming from the dew.

 

This all means that the vines planted here thrive also because, under the ash, the ground is fertile, consisting of clay or sand on a bed of limestone rock.