Bailey's Color Me Pink
Bonide's Color Me Pink turns big-leaf hydrangea (Hydrangea macrophylla) into a pink color by changing the soil pH value. The Color Me Pink will make the soil more alkaline my lowering the pH value with pelletized lime. The soil should be in the range of 6.5-7.0 for pink blooms
Results may vary, depending on the time of year, soil type and temperature. It may require multiple applications in a season.
Note: Some hydrangea varieties (including PeeGee, Oakleaf and Annabelle) will not respond to they change in the pH value, thereby changing the bloom color.