Gardeners change hydrangea color by adjusting soil pH

Hydrangeas, known for their varying colors, are popular garden plants. Their flower colors range from pink, blue, and white and can have over 75 different varieties. The color of hydrangea flowers changes depending on the soil's acidity level. Acidic soil produces blue flowers, while alkaline soil results in pink ones. To alter flower color, gardeners can adjust the soil's pH. Adding lime to the soil can shift blue flowers towards pink.