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    Iona

    interspecific hybrid

    Iona is a grape variety with red berries.1

    Its country of origin is United States.2

    In 2023 it covered 0.8 hectares of bearing vineyards worldwide, ranking 1248 of 1497 varieties in the database.2

    It is now grown in one country only: the United States.2

    VIVC lists its parents as Catawba × Isabella, a pedigree confirmed by DNA markers.1

    Crossed in 1855 by Grant, C.W.1

    VIVC records 1 other name for it.1

    vinoluma engraving: a schematic leaf, not a botanical description of the variety.
    Berry skin (VIVC)
    red1
    Origin
    the United States2
    Area, 2023
    <1 ha2
    World rank
    1248 / 14972
    VIVC
    № 55431
    parentCatawba
    parentIsabella
    Iona

    confirmed by DNA markers (VIVC)

    Area by country

    1. the United States0.8 ha

    Area, 2023

    Where Iona grows

    1. Originthe United States
    2. Areathe United States

    Countries from the University of Adelaide database; dots mark country centres, not regions.

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    Other names

    Jefferson

    Offspring (VIVC)

    Parents

    Other varieties from United States

    Open in the family tree →

    All varieties in the database →

    Sources

    1. VIVC passport no. 5543. Vitis International Variety Catalogue (VIVC), Julius Kühn-Institut, 2026. level 2
    2. Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023. Anderson K., Nelgen S., Puga G. Wine Economics Research Centre, University of Adelaide (CC BY 4.0), 2026. level 3