Tuesday, April 28, 2009

How do the chemicals that change the color of hydrangeas work?

Ok so i know that hydrangeas growing in more acidic soil will be blue as long as there is aluminum present, which can be done by adding aluminum sulfate, and hydrangeas growing in more alkaline soil will be pink as long as there isn't a lot of aluminum present, which can be done by adding dolomitic lime. But does anyone know of any websites that i can find HOW these different chemicals change the color, like the chemical process and how it affects the color pigments in the flower? THANKS!

How do the chemicals that change the color of hydrangeas work?
Try the following site:


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