Grenache Blanc is a white-berried mutation of Grenache, grown in southern France and Spain as a full-bodied, textured blending white. California's numbers show real, if modest, growth: bearing acreage rose from 353 acres five years before the present to 593 acres in the latest report, with 623 total acres logged for 2025 across 22 counties and two grower tech sheets on file, despite the fact that no UC Davis Foundation Plant Services registry entry exists for it, meaning there is no verified certified source of clean planting material in the state. It is used mainly in Rhone-style white blends.
What kind of grape this is
- Registry name
- GARNACHA BLANCA
- Species
- VITIS VINIFERA LINNÉ SUBSP. SATIVA (DE CANDOLLE) HEGI
- Berry color
- BLANC
- Country of origin
- SPAIN
- Parentage
- GARNACHA TINTA MUTATION
- Synonyms
- 25
CDFA prints it as Grenache Blanc
confirmed by DNA markers
names this grape is known by elsewhere, per VIVC
Registries
What is published
Counts describe what this atlas holds for Grenache Blanc, not what California grows. A zero is a published answer: it means the source names the grape and reports nothing under it, or does not name it at all.
- 397
county-years of acreage
22 counties, 593 bearing acres in 2025
- 260
district-years of crush
16 of 17 crush districts, 26 crop years
- 260
district-years of Brix
tonnage-weighted at the crusher, Crush Report Table 3
- 6
producers in this atlas
producers whose curated wine list names it — a curated roster of 2,772 producers, not a census of California
- —
regions with a maturity date
not one of the eight cultivars with a
Acreage in California
loading acreage…
Counties and concentration
loading concentration…
Where it is planted
Reported by county — never by AVA
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Share of each county's vineyard
Reported by county — never by AVA
loading county shares…
The counties
Reported by county — never by AVA
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Tonnage and price by district
Reported by crush district — never by county or AVA
All 16 districts on one axis →
loading crush report…
Brix at the crusher
Reported by crush district — never by county or AVA
loading must chemistry…
Growers in this atlas's roster
- Andrew Murray Vineyardsbottled
Winery · Enchante
- Klinker Brick Winerybottled
Winery · Grenache Blanc, Under the Sea Grenache Blanc
- Mcprice Myersbottled
Winery · Right Hand Man Syrah
- Ridge Vineyardsbottled
Winery · Ridge Grenache Blanc 2024, Ridge Grenache Blanc 2025
- Tablas Creek Vineyardbottled
Winery · Côtes de Tablas Blanc, Esprit de Tablas Blanc, Grenache Blanc and 1 more
- R Five Wineslisted
Brand · Grenache blanc
6 of this atlas’s 2772 curated producers, 5 of them with a named wine in the atlas made from it. A roster is not a census — this is who the atlas has entered, not who grows the grape in California.
Measured chemistry, from one producer's own sheets
Ridge Grenache Blanc 2024
85% grenache blanc13.4 %
alcohol
3.24
pH
4.1 g/L
TA
—
RS
Ridge Grenache Blanc 2025
79% grenache blanc13.7 %
alcohol
3.14
pH
5.8 g/L
TA
—
RS
2 wines from 1 producer, each read from that producer’s own tech sheet and linked to it. No average is shown, and none should be computed from these. Wineries that publish tech sheets are selected by their own marketing departments, so a mean across them describes publishing habits rather than a grape.