Japanese plums are usually larger than European plums and have a rich sweet flavour.
The plums most commonly found year-round in supermarkets are Japanese plums, they are usually quite large and spherical, and keep well.
Japanese plum trees need a warm climate without spring frosts, and with hot summers to grow successfully. They are grown commercially in California, and Chile.
Japanese plums do not cross-pollinate with European plums. However they are grafted on the same rootstocks.