About half of the 52 hectares of vineyard are around the château, but there are additional parcels near Margaux and Brane-Cantenac. The plantings are comprised of 54% Cabernet Sauvignon, 41% Merlot, 4% Petit Verdot and 1% Cabernet Franc with an average vine age of 30 years and a yield of 32 hl/ha. Soils at Rauzan-Ségla are composed of deep, fine gravel which makes for natural irrigation
After hand harvesting and a double sorting, the fruit is gently crushed and then delivered to stainless tanks by gravity-flow where the fermentation begins. Alcoholic fermentation in lasted eight days with pump overs two or three times a day. Malolactic fermentation mostly occurred in vat, but a few wines were done in barrel. The wine was aged in 20% new French oak barrels.
Deep ruby in apperance, Segla delivers aromas of blueberry and vanilla on the nose. On the palate it is medium bodied with silky tannins.