Description: Rio Red grapefruit came out of the breeding program of R. A. Hens z in Texas. It originated as a bud sport of a tree produced from irradiated budwood of a Ruby grapefruit seedling. The tree grows vigorously to a large size. Plantings of Rio Red grapefruit have performed quite well in the Coachella Valley desert region, where it receives the high heat necessary to produce high-quality fruit. The fruit is large, with a slightly pebbled surface. The rind frequently has a pink blush, especially where two fruits grow against each other. The flesh is juicy and well-pigmented, with the darkest color next to the segment membranes. Rio Red is mid to late-season in maturity.