Hydrangeas have become very popular plants for the home landscape in recent years, primarily due to the release of new varieties with flowers of different sizes and shapes featuring more vivid shades ...
Deadhead hydrangeas early; prune timing depends on whether they bloom on new or old wood. Protect plants with mulch, burlap, or cages in cold climates; move potted hydrangeas indoors below 45°F.
Bloom color is generally controlled by soil pH and aluminum availability. Only certain hydrangeas can change color, and some cultivars will stay white no matter what you do to the soil. Color shifts ...