How Can The Color Of Your Hydrangeas Be Restored?

The color of pink and blue varieties of hydrangeas can be altered by adjusting the pH level of the growing soil. To do this, use diluted aluminum sulfate to increase the pH. A lower pH will turn hydrangeas blue, while a higher pH will make them pink. Hydrangeas with blue or pink flowers tend to be blue in acid soil conditions, mauve in acid to neutral soil conditions, and pink in alkaline conditions. They are wonderful performers in the garden and are the mood ring of plants, apt to change color depending upon soil conditions.

To change the color of hydrangeas, wait until the spring or fall. Apply pH-adjusting products in the spring or fall. The easiest way to acidify soil and turn hydrangea blooms blue is with aluminum sulfate, which can be found at almost any garden center. Fertilizers or organic matter can also be used to alter soil pH levels and change the color of hydrangea blooms.

To restore the color of hydrangeas that produce blue flowers, use garden sulfur in a circle halfway between the drip line. Hydrangeas that produce blue flowers need acidic soil to produce that color every year. The only way to get the color back at this stage in the lifecycle is via paint. The change in the color of hydrangeas is due to the pH of the soil, which runs from acidic to alkaline with varying degrees in between.