One of the most popular dooryard and commercial Grapefruit crop in Florida is the Ruby Red Grapefruit. It is a very consistent, prolific bearer in Florida. The seedless, juicy fruits are red pulped, very large and are of excellent quality. The Ruby Reds are self-fertile and the fruit ripens November through May. The trees can withstand temperatures down to 27 degrees or lower, for brief periods. Trees can easily reach heights of 25 feet in 15-20 years.