Changing your hydrangea flowers to blue, pink or purple isn't a magic trick. It's a doable science experiment. Macy Meyer is a North Carolina native who graduated from UNC-Chapel Hill with a BA in ...

A pH lower than 6.0 typically produces blue or lavender-hued flowers. When the pH is above 7.0 (alkaline), it produces pinks and reds. If you have a pink hydrangea and want it to be blue ...

Their flowers, which bloom early in the season, are cone-shaped and start out cream or green in color, gradually becoming pink. Climbing hydrangeas (Wilimedia Commons) • Climbing hydrangea ...