Tahbilk vineyards are grouped along the banks of the Goulburn River, and an anabranch 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. The estate has Cabernet Sauvignon vineyards dating from 1940 to 1990; the oldest of the blocks is the 1949 'Old' Cabernet, planted on very fine red sandy soils. The blocks planted before 1996 are on unknown rootstocks and are healthy. They 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 take place, which improves 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.