Hydrangea macrophylla 'Hamburg' Please note that these are small plants that are just beginning to emerge from their winter dormancy period. Pink/purple mophead flowers. Will turn purple in a more acidic soil. Hydrangeas vary in color depending on the pH of the soil. Height: 1.5m Width: 1.5m Prefers a shaded position with moist soil. Flowers from Spring through till Autumn. 50mm pot.