How do I get my hydrangeas color back?
Considering this, why are my hydrangeas losing color?
A high pH makes the soil more alkaline, which will color the hydrangea blooms pink. A low pH makes the soil more acidic, which turns the hydrangea blooms blue. If your hydrangeas are losing their blue color, first check the pH of the soil to determine it is adequately acidic.
Likewise, do coffee grounds change the color of hydrangeas? If you're growing hydrangeas, use coffee grounds to affect their color. Coffee grounds add extra acidity to the soil around hydrangeas. On a chemical level, this increased acidity makes it easier for the plant to absorb naturally occurring aluminum in the dirt. The effect is pretty blue clusters of flowers.
Also know, does Epsom salt change the color of hydrangeas?
When the ions of Epsom salt disassociate, they have a neutral effect on the pH of the soil. Since the blue color of a hydrangea is formed by aluminum made available in acid soil, adding Epsom salt would not make your flowers change color.
How long does it take to change hydrangea color?
It is easier to change blue flowers to pink than to change pink flowers to blue, and some cultivars are more prone to color variability than others. We recommend waiting until the plant is at least 2 years old to give it time to recover from the shock of its original planting.