Blackberry TreeBlackberry Rubus fruticosus Growing your own blackberries is one of the more rewarding things you can do in a garden. The canes produce generous crops of fruit in late summer, the flowers are a hit with pollinators, and the plant asks very little once it's established. There's also something to be said for eating a blackberry straight off the plant rather than out of a plastic punnet. Native to Europe and western Asia, the blackberry is fully hardy