Origin: in Summerland, British Columbia, Canada by K.O. Lapins, Canada Dept. Agr., Res. Sta. Introd. in 1970. Mutation of Blenheim produced by treating scions with thermal neutrons, discovered in 1956. Tree: large, spreading; vigorous; moderately hardy; moderately productive, bears annually; flowers self-sterile, requires cross-pollination; little or no fruit thinning required. Fruit: large, roundish; skin yellow with slightly green shoulders; flesh yellow, fairly soft, juicy, flavor good, ripens first week of August or 1 week before Blenheim.