When it comes to citrus trees, there's one group that stands out for its striking appearance and remarkable taste – blood orange trees. Blood oranges have deep crimson flesh, tangy-sweet flavor, and rich history. They have earned a special place in the hearts of citrus lovers. The three most common types of blood oranges are the Italian Tarocco, the Spanish Sanguinello, and the Italian Moro.

The history of blood orange trees traces back to the Mediterranean region, where they are believed to have originated centuries ago. Ancient texts mention citrus fruits with red flesh, suggesting that blood orange trees may have been cultivated as early as the Roman Empire. Some theories are that, like navel oranges, they actually originated in China. It was not until the 19th century that blood oranges gained prominence in Europe, particularly in Italy and Spain.

One of the earliest known blood orange trees is the 'Moro Blood Orange,' which hails from Sicily, Italy. Legend has it that the Moro blood orange originated as a mutation of the sweet orange, resulting in its distinctive red hue and robust flavor.