Origin: in Winters, Calif., by Claron O. Hesse, California Agr. Expt. Sta., Davis, and Agr. Res. Serv., U.S. Dept. of Agriculture. Introd. in 1954. Gaviota × Santa Rosa; cross made in 1940; selected in 1943; tested as Calif. 15a-28. Tree: vigorous; numerous medium-sized spurs and buds; blooms with Santa Rosa; self-unfruitful, being pollinated by Santa Rosa and Red Rosa. Fruit: Japanese-type; large; nearly round; skin deep reddish-purple, developing completely before shipping maturity; flesh light amber with some red next to skin at full tree maturity, firm, sweet; aroma mild; quality good; ships very well; excellent market acceptance; ripens end of July in California's foothill districts and a few days earlier in San Joaquin Valley plum areas.