Emerald Riesling is a UC Davis cross of Muscadelle and Grenache, bred by Harold Olmo to deliver an aromatic, Riesling-like white that could still thrive in California's hot inland valleys. CDFA's ledger shows bearing acreage falling sharply, from 424 acres near 2000 to just 51 acres by 2016, planted in Fresno, Kern, and Napa counties, with reporting ending after 2016. Crush volumes were once significant, peaking at about 2,163 tons in a year, before dropping to nothing. Like other Olmo heat-tolerant crosses, it was designed for bulk production in the Central Valley rather than boutique bottling.
What kind of grape this is
- Species
- VITIS VINIFERA LINNÉ SUBSP. SATIVA (DE CANDOLLE) HEGI
- Berry color
- BLANC
- Country of origin
- UNITED STATES OF AMERICA
- Parentage
- MALVASIA AROMATICA DI PARMA×GARNACHA
- Synonyms
- 4
- Approved on a US label
- Emerald Riesling
- FPS selections
- 1
confirmed by DNA markers
names this grape is known by elsewhere, per VIVC
the names TTB permits on a bottle
distinct clones and selections held at UC Davis
Registries
What is published
Counts describe what this atlas holds for Emerald Riesling, 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.
- 37
county-years of acreage
3 counties
- 25
district-years of crush
4 of 17 crush districts, 15 crop years
- 25
district-years of Brix
tonnage-weighted at the crusher, Crush Report Table 3
- 0
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
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Counties and concentration
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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
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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
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Brix at the crusher
Reported by crush district — never by county or AVA
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