Garden Guy Dale K. shows you which hydrangeas are best for your garden and how to turn them pink and blue -- simply gorgeous!
-Hydrangeas change colors based on the pH level of your soil, the more alkaline the soil, the pinker the flowers.
-To test, pour distilled white vinegar over a soil sample. If the solution fizzes, the pH level is high and your soil is alkaline. (If it doesn't fizz, then the soil is neutral or acidic, and you don't have to do much for your blooms to be blue.
-Crushed egg shells, coffee grounds and citrus peel all increase the acidity of your soil