Even though many of these trees are self-fertile or self-pollinating, partnering them up encourages better fruit development and growth. During the spring months, when plums bloom, having several trees near each other offers more opportunities for cross-pollination, thus increasing the yield for each tree. In some situations, this can also help support better-quality fruit growth, with the potential for larger and better-flavored fruit.
Some types of plum trees, such as American hybrid varieties (Prunus nigra) and Japanese types (Prunus salicina), must have a second variety to cross-pollinate with in order to produce fruit. These types of plum trees are considered self-sterile. That means that the pollen produced by that tree will not be effective in fertilizing the flowers on the same tree. They need a plant of the same species to cross-pollinate. Note that, unlike apple trees, which only need a closely related plant for cross-pollination, plum trees often need the same species close enough to encourage pollination. They also need pollinators to move from one tree to the next to fertilize the flowers and start fruit production. There are also some plum trees known to be partially self-fertile. If this label exists, it means the trees could self-pollinate but require very specific conditions to allow for it.
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December 03, 2023 at 09:00AM
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The Surefire Way To Make Sure Your Plum Tree Produces Fruit - House Digest
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