Saturday, November 14, 2009

What do you put on hydrangeas to make them deep purple?

For blue flowers, maintain a soil pH between 5 and 5.5. Apply aluminum sulfate or sulfur to reduce the pH to this range when you see new growth emerging in April.

What do you put on hydrangeas to make them deep purple?
It is much easier to change a hydrangea from pink to blue than it is from blue to pink. Changing a hydrangea from pink to blue entails adding aluminum to the soil. Changing from blue to pink means subtracting aluminum from the soil or taking it out of reach of the hydrangea.
Reply:Bucket loads of blood and bone.
Reply:LIME
Reply:Aluminium Dust
Reply:Grape Kool-Aid
Reply:The color of your flowers will vary bases on the acid level in your soil.


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