If you have a pink hydrangea and want it to be blue ... This will require patience. The plants have to adjust to their new soil conditions, so this takes place over time. If it happened rapidly ...

Discover all you need to know about growing hydrangeas, including care tips, when to prune, and the best way to propagate for ...

Hydrangeas come in several varieties ... to alter their natural color outside of actually dyeing the plant. Pink and blue ...

Adding iron or other acidifying agents to pink flowering plants can change their color to purple and blue. Adding aluminum sulfate can deepen the blue color. Hydrangea plants make excellent hedges ...