Why does my Cherry-Go-Round Hydrangea(20312) have flowers that are pale (pink)?

Cherry-Go-Round Hydrangea like other Mophead (macrophylla) are affected by soil pH. It prefers a acid soil with a pH of  5.7-6.5. In more alkaline soils the flowers will be more pink. Check your soil pH to see if it is too alkaline. Soil pH can be lowered with Garden Sulphur.