Northem highbush. Selected at the Horticultural Res. Inst., Victorian Dept. of Agriculture, Knoxfield, Australia; tested as Knoxfield 47; released in 1977. Origin: in Australia from seed obtained from Michigan State Univ. Berry: very large; medium dark blue; remains poorly pigmented around the pedicel until fully mature; scar medium; firmness good; flavor excellent, but develops off-flavor when over-mature; ripens with or slightly before Bluecrop. Tree: vigorous; highly productive but sprawling; requires pruning to obtain upright growth; easy to propagate from softwood and hardwood cuttings. Fruit: