Add Yahoo as a preferred source to see more of our stories on Google. Kritsada Panichgul It’s a popular piece of garden folklore: Coffee grounds will change the color of hydrangea blooms, making them ...

Changing hydrangea flower color with coffee grounds is a popular garden hack that could do more harm than good. It’s a popular piece of garden folklore: Coffee grounds will change the color of ...

It’s a popular piece of garden folklore: Coffee grounds will change the color of hydrangea blooms, making them the dramatic blue many gardeners covet. The truth is more complicated, according to a ...

Bloom color is generally controlled by soil pH and aluminum availability. Only certain hydrangeas can change color, and some cultivars will stay white no matter what you do to the soil. Color shifts ...