Grape varieties

Viognier: a named line in the rules for a grape almost nobody grows

Appendix A of Ontario's wine regulation sets a minimum ripeness for about twenty named varieties. One of them is Viognier, which does not reach the province's top twenty by acreage and has no line in the sales table. Somebody thought it was worth naming.

Named, against the odds

Most of the varieties with their own entry in Appendix A of Ontario Regulation 406/00 are the ones you would expect: Chardonnay, Riesling, Cabernet Franc, Merlot, Vidal — the grapes that make up the bulk of the province's crop. Everything else falls into "Other vitis vinifera varieties" at 17.0° and 18.0° Brix.

Viognier is named, at 18.0° Brix provincially and 19.0° for an appellation wine. That is a full degree above the residual category at both tiers, and it means the regulation asks more of Viognier than it asks of Pinot Gris, the province's best-selling white. For a variety this small, being singled out for a stricter rule is a curious distinction.

It is also a sensible one. Viognier is a grape that fails specifically when picked early: its apricot-and-blossom aromatics and its characteristic oily texture only arrive at genuine ripeness, and an under-ripe Viognier is thin, neutral and pointless. A regulation that let it through at 17.0° would be licensing the one version of the wine nobody wants.

Expensive fruit

The 2026 Grape Growers of Ontario price schedule gives Viognier class 9g to itself at $1,813 a tonne. That is above Riesling at $1,468 plateau and $1,868 for J. Riesling, above Kerner and Auxerrois at $1,674, and below the big three whites — Chardonnay at $2,099, Gewürztraminer at $2,151 and Pinot Gris at $2,522.

Like Dornfelder among the reds, Viognier gets a class of its own rather than being swept into the shared residual class 9h, which holds Aligoté, Chenin Blanc, Colombard, Grüner Veltliner, Marsanne, Melon de Bourgogne, Roussanne, Savagnin and others together at $1,724. The separate line implies a crop the board considers worth pricing on its own terms.

Difficult here, and difficult everywhere

Viognier is a demanding grape in any climate. It ripens late, it crops erratically, it is prone to poor fruit set, and the window between under-ripe and flabby is narrow — the acidity drops away quickly once sugar starts accumulating, so a few days' delay can cost the wine its shape. In the northern Rhône, its home, it survived into the 1960s on a few dozen hectares before its revival.

In Ontario the late ripening is the binding constraint. It needs the warm sites — the Niagara River and Four Mile Creek sub-appellations, the plain around Niagara-on-the-Lake, the Lake Erie North Shore — and it competes there against reds that pay more per tonne and ripen more reliably. That is a hard argument for a grower to win, and it is the likeliest reason the acreage has stayed where it is.

Nearly extinct within living memory

Viognier's near-disappearance is worth knowing because it explains why the grape is unfamiliar to most drinkers. By the mid-1960s the world's plantings had fallen to a few dozen hectares in Condrieu and Château-Grillet in the northern Rhône — a variety that difficult, that low-yielding and that prone to poor fruit set could not compete for vineyard land, and it came close to being lost altogether.

Its revival from the 1980s onward was driven by exactly the quality that makes it hard to grow: at full ripeness it produces a wine with an aromatic intensity and texture that nothing else supplies. That is a useful frame for the Ontario crop. A grower planting Viognier here is not planting a safe white; they are accepting a difficult variety for a distinctive result, on ground that could carry something easier and better paid.

The Rhône connection

One use worth mentioning, because it links the province's two most demanding warm-site varieties. In the northern Rhône, Viognier is traditionally co-fermented in small proportions with Syrah, where it stabilises colour and lifts the aromatics. Ontario grows both on the same warm ground and pays more for Syrah than for any other grape in the schedule, so the pairing is at least available here. The varieties page places Viognier among the province's whites.