An 8 - 10 ft zone 3a deciduous shrub that produces edible berries rich in vitamins A, C and E (among other things). This plant freely suckers so be sure to contain it, and it also has long lance like thorns so care must be taken when working around it
Native over here on coasts - here's a natural population at Aberlady Bay, southeast Scotland, in November a couple of years ago. Grows taller than you give, easily to 6 m, rarely 8 m tall. The berries are spectacular.