As far as the soil where the plant lives is concerned, its importance is such that, on occasions, only a difference of a few metres means that the same type of grape can produce different wines.
The soil, where the grape is born, is as important as the subsoil and its components.
Generally speaking, the vines that produce the best wines live in soils with little organic matter, slightly alkaline and well drained.
On the other hand, although vines need magnesium, potassium and phosphorus, the levels of these nutrients do not have to be very high.
Once the general needs are covered, we know that siliceous soils produce light wines with finesse and bouquet; limestone soils produce aromatic and full-bodied wines; clay soils, on the other hand, produce wines with a lot of colour and alcohol.
As far as the humidity of the soil is concerned, it should be rather low (the importance of a well-drained soil is well known since ancient times), although the vines are always grateful for the atmosphere provided by the proximity of the sea or a flowing river.
It is also necessary to have elements that can create a microclimate from which the grapes, and in the future, the wine, will benefit.
Having a forest nearby is equivalent to having a buffer against bad weather and sudden changes, just as a simple hill can be an excellent protection against the winds; a river ensures a beneficial relative degree of humidity.
In any case, it is important to remember that the aim is to achieve a healthy plant which, nevertheless, does not develop too vigorously in order to have a tasty fruit at the end of its cycle with the right degree of ripeness.