Bordeaux identity
Plantgrape describes Semillon as originally from the Bordeaux vineyards. UC Davis FPS independently records Sémillon with France as its country of origin.
Wine-grape reference
White wine grape · Vitis vinifera
Sémillon
A white wine grape from the Bordeaux vineyards whose yields vary strongly with terroir.
- Origin
- Bordeaux, France
- Wine-grape group
- White
- Names in this reference
- Sémillon · Semillon
Vine characteristics
Soil fertility context
Plantgrape describes moderate vigor and rather high productivity, a particular response to soil fertility with yields varying enormously by terroir, and apparent adaptation to gravelly or clay-limestone soils. These are reference observations, not yield predictions.
Regional research context
Plantgrape notes sensitivity to grey rot, black rot on young leaves, mites and leafhoppers, and low susceptibility to powdery mildew and eutypa dieback. Those are reference observations, not treatment advice.
Reference review · November 9, 2026
Sources & scope
- Plantgrape — Semillon ↗
INRAE / IFV cultivar reference. Vine-trait observations belong to this reference's context; they are not universal planting or irrigation recommendations.
- UC Davis Foundation Plant Services — Sémillon variety record ↗
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.