Its name comes from the city of Valencia, Spain, known through history for its sweet orange trees, originally from India. The patented orange hybrid was later sold by William Wolfskill to the Irvine Ranch owners, who would plant nearly half of their lands to its cultivation. The success of this crop in Southern California led to the naming of Valencia, California.
Primarily grown for processing and orange juice production, Valencia oranges have seeds, varying in number from zero to seven per fruit. However, its excellent taste and internal color make it desirable for the fresh markets, too. The fruit has an average diameter of 2.7 to 3 inches (70 – 76 mm). After bloom, it usually carries two crops on the tree, the old and the new. The commercial harvest season in Florida runs from March to June. Worldwide, Valencia oranges are prized as the only variety of orange in season during summer.
See also 
- "Valencia oranges". Citrus Trees Online. Retrieved 21 June 2012.
- HOME FRUIT PRODUCTION-ORANGES at Texas Cooperative Extension Texas A&M Horticulture program
- Sweet Oranges (including Valencia Oranges: Campbell Valencia orange, Cutter Valencia orange, Delta Valencia orange, Midknight Valencia orange, Olinda Valencia orange at University of California Riverside Citrus Variety Collection