Video: 'Prime-Ark Freedom' | The Thornless Primocane-Fruiting Blackberry from the University of Arkansas

John R. Clark, PhD, cane fruit breeder and Professor of Horticulture at the University of Arkansas, describes the world's first thornless blackberry variety that flowers and fruits on 1st-year canes. Prime-Ark Freedom, released by UA's Division of Agriculture, features exceptionally large, exceptionally early, flavorful berries in abundance.