Most Hydrangeas produce great results but require little maintenance, & Hydrangea macrophylla ' Blue Danube' is no exception. When given space in a sunny or partially shady border or patio container, the hardy shrub will produce striking flowerheads in July & August. These blooms can grow to an impressive 20cm (8) in diameter, transforming cottage gardens & dominating any cut flower display. The papery petals are typically a blue-violet colour when the plant is grown in acidic soil, while an alkaline environment will result in a pink tone.
Height: 1m (3'3). Spread: 1m (3'3).