This post will really only appeal to wine nerds!  But understanding the different kinds of soils will give you a good foundation (sorry) and insight into the wine-making process.  Here’s a list out the soils that are the most prevalent in South Africa. Best Vineyard soils. Gravelly or rocky soils are potentially good vineyard soil as gravel acts like natural mulch, shading the vine roots from the sun.  The gravel and clay combinations acts like a sponge storing water during the rainy season and redistributing it back to the roots in the dry season.  This ensures constant feeding for the vines, giving them a more balanced water source as opposed to simple irrigation.   Sandstone Lightly coloured, sandy with low nutrient and adequate water…