A white flowering hydrangea will not change bloom color. However, the soil pH will cause some hydrangea shrubs to bloom pink or can be altered to change the bloom color to blue. Our planting instructions for hydrangea shrubs explains the color change as well as the correct time to prune your flowering shrubs. Invincibelle® Spirit Hydrangea Petiolaris anomala Hydrangea Pinky Winky™ Hydrangea Nikko Blue Hydrangea Let’s Dance® [...]