If you plant bigleaf hydrangeas, you can control the color of the blooms by managing the soil’s pH: Acidic soil levels (with a pH below 6.0) lead to blue flowers, and alkaline soils (with a pH ...
Hydrangeas are a top pick for British gardens, thriving even in the chill of winter, but gardeners take note there's a simple trick to ensure a bountiful bloom come spring. Though spring might ...