Lemons are not natural fruit; rather, they are the product of a plant hybridization between two different species: citron and bitter orange. Citron is a large, fragrant citrus fruit with a thick, bumpy flesh; unlike other citrus fruits, it has very little juice and is typically used as a main source for the creation of other citrus fruits like lemon. Over many years, people have grown and bred these plants to create the modern lemon.

The Natural History of Citrus
Citrus fruits include oranges, limes, grapefruits, lemons, and tangerines. Each of these fruits has a distinct flavor and sometimes color, such as the sweet orange or the sour lime. Citrons and bitter oranges were the first citrus fruits known in antiquity. These early fruits were the forerunners to the numerous citrus varieties we enjoy today, thanks to a lengthy history of natural evolution, human farming, and hybridization.
The Accidental Intervention
Scientists have views about how lemons evolved based on genetics and history. However, they are certain that lemons are a cross between citrons and bitter oranges, but how they mixed in nature is unknown because natural processes are extremely complex and happened a long time ago.
One possible explanation is because birds or animals dispersed seeds. Citrons and bitter oranges are popular fruits for birds and animals. After eating them, they may roam and defecate out the seeds in different locations. If seeds from both citrons and bitter oranges ended up in the same location, they could grow into trees close together. These trees may then cross-pollinate spontaneously, producing hybrid fruits such as lemons.
Wind pollination is another possible explanation for this. If citron and bitter orange trees were grown close together, the wind could transport pollen from one to the other. This pollen transfer can result in flowers being fertilized with pollen from another tree, resulting in hybrid fruits. As a result of natural processes like seed distribution and wind pollination, citrons and bitter oranges may have mixed to produce lemons.
Conclusion
Lemons evolved from a natural cross between citrons and bitter oranges. Despite their unintentional beginning, they’ve grown extremely valuable.
Lemons are used to make meals taste better, clean better, and keep us healthy due to their vitamin C content. It’s a terrific illustration of how mishaps may lead to something extremely beneficial and delicious.