A new and distinct cultivar of Hydrangea macrophylla (Thunb.) named ‘Freedom’ originated as a controlled cross between unpatented varieties. The cultivar ‘Freedom’ can be blue or red depending on the acidity of the soil and the presence of aluminum. The variety ‘Freedom’ has relatively compact, attractive inflorescences with relatively large sepalous florets, distinct sepal pigmentation and good commercial characteristics. When grown in the presence of aluminum, the sepals are R.H.S. 71 A (red-purple group).