Big Leaf Hydrangea
Zone  5
Compact, rounded shrub with glossy dark green foliage and gorgeous, deep red mophead blooms all summer.
 Deadhead to encourage continuous and more blooms.  Green foliage will turn an attractive burgundy-bronze colour in the fall.  Can be grown in sun or part-shade. Do not prune.  Blooms on old wood.  Remove dead or damaged wood in the spring. HEIGHT:  60-80  cm      SPREAD: 60-80 cm
All hydrangea flowers do undergo some colour changes as they age.  Also soil pH can change the flower colour of some cultivars.
2 gallon container size
Image courtesy of Bloomin' Easy