White wine grape · Vitis vinifera
A white wine grape native to the northern Côtes du Rhône, genetically close to Mondeuse blanche.
Plantgrape describes Viognier as native to the northern part of the Côtes du Rhône and, from genetic analyses carried out in Montpellier, as closely related to Mondeuse blanche. UC Davis FPS independently records the variety as Viognier.
Plantgrape notes Viognier is traditionally grown in acidic terroirs and suited, in southern areas, to sufficiently deep but not too fertile soils to avoid drought risk; early budburst exposes it to spring frosts. These are attributed observations, not a moisture target.
UC Davis FPS lists historical synonyms including Vionnier and Petit Viognier. Naming records confirm identity; they are not evidence of suitability at a new site.
Reference review · November 9, 2026
INRAE / IFV cultivar reference. Vine-trait observations belong to this reference's context; they are not universal planting or irrigation recommendations.
Independent institutional variety record used to cross-check cultivar identity and naming. It does not independently validate every agronomic observation in Plantgrape.
Cultivar descriptions are source-attributed reference material, not site prescriptions. No numeric soil-moisture threshold, disease diagnosis, regional suitability guarantee or GroundWorx performance claim is established here.