Jo-Jo
ActivePrunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
10 August 2026
The tree is vigorous, reaching 3–7 meters in height, with a dense spreading crown. Fruits are large, weighing 60–75 g, round-oval in shape. The skin is dark purple, almost black, covered with a thick waxy bloom. The flesh is yellow or yellow-green, juicy, with a sweet dessert taste and honey notes.
The variety is partially self-fertile and enters fruiting in the 2–4th year. Fruit ripening occurs in the second ten-day period of September. The plant possesses high frost resistance down to -34 °C and resistance to fungal diseases, however, it is demanding of regular watering due to low drought tolerance.
4 jurisdictions
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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 237918
№ PRM24
№ SR S283
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
Prunus domestica L. · European plum
Prunus domestica L. · European plum
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Nearby in the species list Black Prince, Blaue Krieche, Blaue Zipper, BLEU FREE, Bleue de Belgique, BLUE FREE, Blue Frost, Blue Moon, BLUE MOON SEL. 8-91, BLUEBELL (BLUE BELLE PLUME), Bluefre ISK, BM-VA-1, BM-VA-2, BN 4 Kr, Böhmische Ananaszchwetschke, Bonne de Bry, Bornholmsk Kæmpeblomme, BORSUMER, Borsumska, Bosanka