Tahbilk’s vineyards are grouped along the banks of the Goulburn River, and an anabranch of it flows through the estate. The vines are grown at approximately 134 meters of gently undulating and flat terrain. The soils are sandy loams with ferric oxide content, which varies from wonderful sand near the anabranch to denser loams on the plains. Estate Cabernet Sauvignon vineyards date from the 1940s to the 1990s. The oldest of the blocks is the 1949 “Old” Cabernet, planted on excellent red sandy soils. The vines are trained on a single wire trellis with a mixture of head and cordon training; all are cane-pruned. Tahbilk's vines are sustainably cultivated; composting and mulching improve soil health by promoting earthworm activity. Mulching helps to control weeds and conserves water, reducing vine stress. The old vines are hand-picked, while younger vines are machine-harvested.