Wine Advocate-Parker :
The 2015 Calon Segur is a blend of 82% Cabernet Sauvignon, 16% Merlot and 2% Petit Verdot (no Cabernet Franc in the Grand Vin this year). It was picked from 8 September until 5 October at a yield of 47 hl/ha and is matured in 100% new oak for the next 20 months. The Cabernet Sauvignon dominates the aromatics with blackberry, cedar and graphite aromas: quite linear, nicely focused and reserved compared to the 2014 last year. The palate is understated on the entry, the tannin very fine and the acidity very well judged. Like the nose, the Cabernet drives this wine forward: structured and a little "brittle" in the mouth, perhaps the most Pauillac-like Calon-Segur that I have encountered over many years of tasting. Afford this several years in bottle.
Decanter - "Really lovely bouquet: totally aromatic and full of finesse and restrained power. Great charm and purity of fruit on the palate, showing lovely precision and persistence. This château continues on its progression to the top.
Barrel Sample. "
Dark crimson. Pure and aromatic. Pretty dense and dry with a hint of sweet oak. Solid and concentrated. All set for the long term. Pretty introvert. Edgy finish but more sweetness than there used to be. Intense - more intense than usual for this property. A little attenuated on the end. Very solid indeed! 13.3% Drink 2024-2036 Jancis Robinson MW
Wine from St-Estèphe typically matures more slowly than its southern counterparts. The soil is heavy and rich with clay, leading to wines with firm, muscular tannins and high acidity. Dark and opaque in color, the wines can be a bit austere in their youth, though most get softer as they age. Cabernet Sauvignon is the primary grape in most of the region's blends, although Merlot is important in helping to soften the wines.
The community of Saint-Estèphe has it roots in the Gallo-Roman origins of this château. Château Calon-Ségur was the first wine estate in the commune and is classified as a Troisième Cru Classé. The wine is a blend of Cabernet Sauvignon, Merlot, Cabernet Franc and Petit Verdot. It is matured in wood for 18 months, with 50 percent new oak.