in the vineyard : The semi-precious stone of Onyx represents the dark granite bedrock so prevalent in the premium vineyard of Groenekloof. This vineyard, is without doubt, our most treasured pride and joy! It is only the very best of these selected parcels which produce wines of great depth and complexity that are bottled under Onyx.
Terroir: Deep dark coloured soils from decomposed granite in the Darling hills.
Vineyards: Bush vine/dry land
Climate: The climate is positively influenced by the Atlantic Ocean with sunny days and cool nights.