Hydrangeas in pinks and blues

Hydrangeas in pinks and blues

One of my readers commented on my July 8th post that hydrangeas change color based on the pH or acidity levels of the soil.  Hydrangeas planted in strongly acidic soil (pH below 6) tend to be blue.  Those planted in alkaline soil (pH 7 and above) are pink.  And those planted in neutral soil (pH 6 to 7) display purple hues.

That made me think of mood rings!

I still don’t understand how one bush can bloom in an array of colors, from pink to purple to blue.

And, I read that white hydrangeas are not barometers of soil acidity.

Regardless of color, those hues are wonderfully represented in watercolors.

Painting hydrangeas

Painting hydrangeas

Hydrangeas in small vase

Hydrangeas in small vase

Hydrangeas

Hydrangeas