In the vineyard
The site consists of a 4.5 hectare plot. It is made up of 70% merlot vines and 30% Cabernet Franc of which a good proportion survived the great frost of 1956 and date back over 70 years. The soil is made up of gravel over red clay (known as "crasse de fer") containing a high proportion of iron. This being a distinct feature of top Pomerol sites, naturally limiting yields and some say producing the truffle character you regularly find in top Pomerol.
Over the last 20 years Christian Moueix has been implementing distinct structural changes on the plateau of Pomerol to improve certain parts of the vineyards. Obsessed with the drainage of a vineyard, which he believes represents a site of quality, Christian has since installed seven individual six metre deep wells underneath the plateau to improve drainage in less favorable parts of the site.
The estate carries out deep inter-row ploughing four to six times a year as well as a summer crop thinning to improve concentration of the grapes and pushing ripeness earlier in the season.
In the winery
Vinification is carried out using small concrete and stainless-steel tanks whilst maturation of the wine is carried out in wooden barrels. Hosanna sees a maximum of 50% new oak barrels in the élevage process.
The wine is made and matured at Château La Fleur-Pétrus.