The 'Fiesta' variety is the result of a complex cross made in 1965 by John H. Weinberger of the USDA Agricultural Research Service at the U.S. Horticultural Field Station in Fresno. It was released for commercial production in December 1973.
'Fiesta' was selected for its ability to produce high quality raisins and its early fruit ripening. Increases in 'Fiesta' plantings in California have been gradual since its introduction in 1973. This modest rate of expansion was influenced by industry concerns in the late 1970s over the seed trace content of 'Fiesta' raisins. These concerns were found to be exaggerated and the variety is now widely accepted by raisin packers. It is not used as a table
Grape because of its sensitivity to gibberellic acid.
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