How To Modify The Color Of Hydrangeas?

To change the color of hydrangeas, you can adjust your soil’s pH levels. A lower pH will turn hydrangeas blue, while a higher pH will make them pink. To alter the color of pink and blue varieties of hydrangeas, you can use diluted aluminum sulfate to increase the pH. You can also use fertilizers or organic matter to alter a soil’s pH levels and change the color of hydrangea blooms. For acidic soil, adding garden sulfur or aluminum sulfate can lower the pH and turn the blooms blue.

Acidic soil, with a pH lower than 6.0, yields blue or lavender-blue hydrangea blooms. Alkaline soil, with a pH above 7.0, promotes pinks and reds. With a pH between 6 and 7, the blooms turn purple or bluish-pink. To lower the pH, add garden sulfur or aluminum sulfate to your soil.

To change the color of hydrangeas, you can use fertilizers or organic matter to alter a soil’s pH levels and change the color of hydrangea blooms. Add fruit peels, lawn clipping, peat moss, or pine needles to make the soil more acidic. Dolomitic lime can be introduced to turn blue blooms pink, as well as phosphorus-based fertilizers.

Bigleaf and mountain hydrangeas can shift from pink to purple or blue depending on the soil pH and the presence of aluminum. Regular watering, a partly shaded spot, and careful attention to the acidity of your soil can boost your hydrangea blooms to bold blue or pretty pink. If your soil is more alkaline, your hydrangeas will be pink or pinker, while if it is more acidic, they will be blue or bluer.