Kinnow Mandarin: History | World of Citrus

1915Riverside, California, United States
Cross Made
Howard B. Frost made the King tangor × Willowleaf (Mediterranean) mandarin cross at the University of California Citrus Experiment Station in Riverside in 1915. Kinnow and Wilking were sister selections from this cross.
- Howard B. FrostBreeder
  Made the King tangor × Willowleaf mandarin cross from which Kinnow originated.
Sources: ⁠[1]
1935
Named
The selected King × Willowleaf hybrid was named Kinnow in 1935.
Sources: ⁠[1]
1935
Released
UCR’s CRC 3021 collection account reports that Kinnow was named and released in 1935. The source does not specify a formal release organization or site.
Sources: ⁠[1]

Cross Made