Single Vineyard and Monopole at Clos Ostler

5 days ago

2 min read

Entrance gate and limestone walls at Clos Ostler in the Waitaki Valley.

The limestone wall around Clos Ostler gives the vineyard a visible boundary. Built when the vines were planted, it encloses a north-facing escarpment near Duntroon in the Waitaki Valley. Shells remain embedded in the stone. Within that boundary, the same family estate grows Pinot Noir, Chardonnay and Pinot Gris.

Single vineyard describes the source of the wines. Monopole describes the vineyard’s ownership by one proprietor. At Clos Ostler, the two ideas meet in a continuing commitment to one place. The practical consequence is that the site can be followed together, from its individual parcels to the bottles kept from each harvest.

Difference within a boundary

A single vineyard contains variation of its own. Soil depth, position on the slope and vine material influence how individual parcels grow and ripen. Harvesting and fermenting components separately preserves those differences long enough for their contribution to become clear.

Our five Pinot Noir clones are 115, 667, 777, UCD6 and Abel. Each is a selection of the same variety, grown within the estate. Their character is shaped by the parcel and the year as well as the clone itself. Blending follows the wines those components have become through fermentation and maturation.

Caroline’s and EOS

Caroline’s Pinot Noir draws on all five clones and offers the broadest account of the vineyard. It also carries our longest sequence of vintages, beginning with a small experimental release in 2004. That continuity gives each new Caroline’s a place within an accumulating history of the slope.

EOS follows a more focused selection, centred on clones 667 and 777 with a smaller contribution from Abel. Perfume, power, structure and the capacity to develop in bottle guide its identity. It shares its origin with Caroline’s while giving a different emphasis to the vineyard’s fruit.

The distinction remains alive from year to year. Our recent EOS 2023 tasting showed precise cherry compote, roses, rosehip, bramble, dried raspberry and fresh herbs, with a citrus-like lift. EOS 2024 is darker and more complex, retaining silky tannins and finesse. A consistent name allows those seasonal differences to be followed rather than flattened into a single style.

The white wines on the same slope

Chardonnay and Audrey’s Pinot Gris extend the view beyond Pinot Noir. Their fruit comes from the same estate, but the varieties and cellar decisions lead to different wines. The full malolactic fermentation of Chardonnay 2024 and partial conversion of 2025 are one example of that responsiveness.

The value of an estate account lies in such detail. Vineyard origin, selection and vintage each describe a different part of the bottle’s history. Together they make the wine easier to understand and more rewarding to follow, whether it is opened on release or held in the cellar.

For Clos Ostler, a monopole is therefore a long undertaking. The wall marks the boundary, while the wines build its record. Each harvest adds another season to a place we can return to, compare and come to know more closely.