Pick up to 1.3kg of these large, sweet berries from a single hanging basket planted with Blackberry Black Cascade.Traditional blackberries are sprawling plants that don\'t suit a garden but this is a breakthrough in blackberry breeding enabling gardeners to grow them on patio to harvest from your baskets. The sweet fruits don\'t have any bitterness and are compact, plants with thornless trailing stems, every stem on the plant will produce berries and will crop more than once a season. Height: 30cm (12). Spread: 45cm (18).