Jo-Jo
ActivePrunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
10 August 2026
The tree is vigorous, with a wide spreading crown of medium density. The variety is self-incompatible and requires pollinators. When grown on standard rootstocks, it may show a tendency toward biennial bearing; it prefers sunny sites protected from the wind.
Fruits are of medium size, weighing about 32 grams, round or conical in shape. Skin color is dark blue, almost black, with a dense waxy bloom. The flesh is greenish-yellow, juicy and tender; the stone separates easily. The harvest is suitable for fresh consumption, canning, and drying.
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.
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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
Prunus domestica L. · European plum
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Prunus domestica L. · European plum
Nearby in the species list Kantata, Katalonischer Spilling, Katalónský špendlík, Katinka, Katinka ISK, Kaukazinė slyva, Kauno vengrinė, Kihelkonna, King of Damson, Kirka ISK, Kirke’s Blue, Kirke’s Pflaume, Kirke’s Plum, Kirke's Plum, Kirkea superba, Kirkeho, Kirkes, Kirkes Blome, Kirkespflaume, Kirsebærblomme (Sprite)