Having two plum trees in your garden is beneficial for several reasons. The most important reason is that some plum tree varieties are self-infertile, which means they cannot pollinate themselves and require another compatible plum tree nearby to ensure successful fruit production. In other words, having two plum trees increases the chances of a good crop.
When a plum tree is self-infertile, it means that the pollen from its own flowers is not sufficient to fertilize the ovules and produce fruit. In such cases, the tree relies on cross-pollination, where pollen from a different plum tree is transferred to its flowers by wind, insects, or bees. This process ensures the fertilization of the ovules and the development of fruits.
By planting two plum trees, you create an opportunity for cross-pollination to occur. The trees should ideally flower at a similar time, allowing the transfer of pollen between them. This increases the likelihood of successful fertilization and a higher yield of plums.
Additionally, having two plum trees can also lead to increased genetic diversity in your garden. Different plum tree varieties may have unique characteristics, such as taste, color, size, and disease resistance. By having multiple varieties, you can enjoy a wider range of flavors and qualities in your plums.
Moreover, having two plum trees can provide insurance against potential problems. If one tree fails to produce a good crop due to adverse weather conditions, pests, or diseases, the other tree may still bear fruit. This ensures that you have a backup source of plums, even if one tree encounters difficulties.
Furthermore, having multiple plum trees can enhance the aesthetic appeal of your garden. Plum trees are often admired for their beautiful blossoms in spring, and having two trees can create a more visually striking display. The combination of different colors and scents can be captivating and attract pollinators to your garden.
In my personal experience, I have witnessed the benefits of having two plum trees in my garden. I initially planted a self-fertile plum tree, assuming it would be sufficient for successful fruit production. However, I soon realized that it was not self-fertile and required another compatible plum tree nearby. I then planted a second plum tree that flowered at the same time, and the cross-pollination resulted in a significantly larger harvest of delicious plums.
To summarize, having two plum trees is necessary when dealing with self-infertile varieties. It ensures proper cross-pollination, increases genetic diversity, provides insurance against potential problems, and enhances the beauty of your garden. So, if you want a bountiful crop of plums, it is advisable to plant two compatible plum trees.