The rex union grapefruit is a natural hybrid variety that is a cross between the Seville sour orange and the pomelo. Botanically known as Citrus × paradise the rex union grapefruit is a member of the Rutaceae or citrus family.

The rex union is a typical grapefruit size with a dark red orange, nearly blemish free outer skin. The inner flesh is a light orange, has a juicy consistency and offers an overall sweet flavor with mild sour nuances. Having a small amount of seeds makes this grapefruit ideal for marmalades.

Serving Ideas

The rex union grapefruit can be utilized in many preparations that call for grapefruit. Its flavor pairs well with ginger, cinnamon, fresh herbs such as mint, rosemary and thyme, avocado, watercress, feta, brown sugar, and seafood such as salmon, lobster, scallops and shrimp. Most commonly the rex union is known as a superb variety of grapefruit for making marmalades.

Geography/History

First discovered in South Africa in the early 1900’s the rex union grapefruit was named after George Wellington Rex. Known as a pioneer of grapefruit in South Africa George Wellington Rex was responsible for bringing the rex union and many other varieties of grapefruit to the region. Though it has yet to be marketed commercially the rex union grapefruit can be found growing still in South Africa as well as in citrus growing regions of California.

Seasons/Availability

Rex union grapefruits are available during the winter and early spring months.