The Caprifig produces a small non-edible fruit; however, the flowers inside the Caprifig produce pollen. This pollen is essential for fertilizing fruit of the Smyrna and San Pedro types. The pollen is transported from the Caprifig to the pollen-sterile types by a Blastophaga wasp. Commercial growers hang baskets of Blastophaga-infested Caprifigs so that the wasps can effectively fertilize the fruit. Caprifigs were grown successfully at Del Rio before 1901.