Jo-Jo
ActivePrunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
10 August 2026
The Early Blue variety is described as rare and withdrawn from commercial use. In modern agronomic studies, this variety is characterized in comparative trials as less productive compared to commercial hybrids. A generally accepted variety passport with an official breeding description is not presented in publications.
The fruits are described as having an early ripening period, medium size, and dark blue skin color with a waxy bloom. The fruit flesh is yellow, juicy, and the stone separates from the flesh.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Records are sourced from official registry publications. Data sources and legal status
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Same species
Prunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
Prunus domestica L. · European plum
Hartmann Walter
Prunus domestica L. · European plum
Walter Hartmann
Prunus domestica L. · European plum
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Prunus domestica L. · European plum
Prunus domestica L. · European plum
Nearby in the species list Duke of Edinburgh, Dumiron, Duranče, Duránci Bellon, Durancie, Duranec, Dwarf, Earliblue, Earliblue ISK, EARLY BIG EGG, Early Laxton, Early Mirabelle, Early Prolific, Early Transparent Gage, Early Victoria, Early White Plum, Early Yellow, Echte Haferpflaume, Echte Haferzwetsche, Edda