Prime-Ark Freedom, (patented variety) University of Arkansas release is the world’s first thornless primocane-fruiting blackberry.
“Prime-Ark® Freedom is an exciting development as it is the first
thornless plant of this blackberry type released for commercial
introduction in the world,” . “Its potential to produce two
crops each year, both being early to very early in ripening, is another
unique attribute of this cultivar. Its exceptional fruit size should
make it a very noteworthy blackberry for home gardeners or local-market
growers. It has very large berries with good flavor,”