A thorny, erect primocane-fruiting blackberry. Origin: University of Arkansas, by John R. Clark, James N. Moore, and Jose Lopez-Medina. Ark 1836 × Arapaho; cross made 1994; selected in 1997; tested as APF-8; introd. in 2004. USPP 15,788, issued 7 June 2005. Tree: erect canes; thorny; moderate vigor; floricane productivity moderate but has been reduced from spring freezes more so than Prime-Jim™; primocane yield low to high depending on location; susceptible to double blossom/rosette (Cercosporella rubi)(floricanes); moderately resistant to anthracnose; ploidy assumed to be 2n=4x=28. Fruit: medium, 5.0 g floricane fruit average and primocane fruit ranging from 4.0 g (Arkansas) to 10 g (Oregon); glossy, blocky and conical; moderate to good firmness; good flavor similar to other Arkansas thorny cultivars; 9.6% SS; dry seed weight 3.2 mg; postharvest handling better than Prime-Jim™ but not intended for shipping; floricane fruit first ripe date in Arkansas 10 June; primocane fruit first ripe date 18 July in Arkansas and about 1 Sept. in Oregon; primocane crop can extend until frost.
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