Gemtree operates in McLaren Vale, the warm heart of South Australia's Fleurieu Peninsula, where Shiraz and Grenache thrive in Mediterranean conditions. The winery's portfolio centers on these varieties: the Small Batch Grenache, a wine that demonstrates the elegance and spice the region coaxes from the grape, and two expressions of Shiraz—the Ernest Allan and Obsidian—each capturing the dark fruit intensity and structure McLaren Vale is known for. These wines have been assessed by Wine Enthusiast, Wine Advocate, Wine Spectator, Decanter, and Falstaff, reflecting a profile that engages serious critical attention. The winery's focus on Grenache and Shiraz, paired with small-batch discipline, positions it within McLaren Vale's tradition of bold, fruit-forward reds crafted for both immediate pleasure and cellaring potential.