![]() ![]() However, even self-fertile trees will produce better if cross-pollinated with a second tree. So, if you have space for only one tree, go with a European plum. European plums are generally self-fertile, but Japanese and American hybrid plums usually need to cross-pollinate with a second variety for cross-pollination. ![]() American hybrids are typically the hardiest of the plums, with some varieties being able to survive as far north as Zone 3. The Japanese plums’ early blooms make them more susceptible to spring frosts in colder areas.
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