The Rio Red grapefruit tree is a variety of citrus known for its large, round fruit with a vibrant, ruby-red flesh. This tree produces sweet and tangy fruit with minimal bitterness, making it popular for fresh eating, juicing, and use in salads. Rio Red grapefruit trees thrive in warm, subtropical climates, offering a high yield of flavorful fruit. They are also prized for their attractive, glossy foliage and ability to withstand mild frost.