This neat little Blackberry is just the thing if you have limited space. With a dwarf, compact habit, Blackberry 'Opal? forms an upright bush of only 90cm (36) tall - just perfect for growing in patio containers, or wherever space is at a premium. A bumper harvest of blackberries with a deliciously sweet flavour can be harvested from thornless stems in late summer and autumn. Like all Blackberries, it will attract a host of pollinating insects to its blooms, but takes up a fraction of the space of traditional cultivars. Height and spread: 90cm (36).