The U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) citrus scion breeding program recently rediscovered several noteworthy grapefruit cultivars at the A.H. Whitmore Foundation Farm in Groveland, Florida. Among these are the Florida Red, Red Blush and Henderson varieties.
These cultivars were originally selected as long shots from the Whitmore Foundation Farm and were planted in 1986. They have survived freezes and intense huanglongbing (HLB) pressure that has devastated well-known cultivars like Ruby Red.
Read the full article at citrusindustry.net.