Instead of using chemicals, try this:Transplant Tonic1/2 can beer1 tbsp ammonia1 tbsp instant tea1 tbsp baby shampoo1 gallon waterMix all of the ingredients together. Use 1 cup of tonic for each plant that you are transplanting.To turn a hydrangea blue, use Aluminum Sulphate fertilizer. This is the best way of turning your hydrangeas blue. Using an all-purpose fertilizer like MirAcid will maintain acidity but will not change the color very quickly. To turn your blue hydrangeas more pink, add lime to your soil. These techniques will work gradually. Lime, especially, take weeks or months to work in the soil.

__________________
Yahoo!