Epsom salt, which is magnesium sulfate, does not directly change the color of hydrangeas. The iconic blue and pink hues of hydrangea blooms are primarily determined by the soil’s pH level, not by the addition of Epsom salt. Understanding Hydrangea Color and Epsom Salt Hydrangea color is a fascinating topic for gardeners. Many believe that […]
How to get hydrangeas to bloom different colors?
You can influence hydrangea bloom color by adjusting the soil pH. Acidic soil (lower pH) with available aluminum will produce blue flowers, while alkaline soil (higher pH) will result in pink or red blooms. White hydrangeas, like the ‘Annabelle’ variety, typically do not change color. The Magic of Hydrangea Color: Understanding Soil pH Hydrangeas are […]