The grapes come from Mulderbosh’s estate vineyard and from the slopes of Simonsberg, the Polkadraai ward and vineyards close to False Bay on the lower slopes of the Helderberg. Some of the vineyards are within two and a half miles of False Bay, where the strong influence of the Atlantic Ocean has a cooling effect during the warmest months of the year, encouraging balancing acidity to the concentrated fruit produced in this warm region. There is a strong geological consistency of decomposed granite to all the vineyards; while the soils consist of varying compositions of gravelly clay. The vineyards are trellised and trained to Vertical Shoot Positioning (VSP), with moveable foliage wires. Mulderbosch cultivates without herbicides; and desuckering and leaf thinning is practiced where required in order to ensure optimum light penetration into the canopy to ensure even fruit ripening.