探索中： Pick the Flower Hue You Want
For true blue flowers, the hydrangeas need to be grown in acidic soil (pH 5.5 and lower). For pink flowers, the plants need neutral to alkaline soils (pH 6.5 and higher). For purple blooms (or a mix of blue and pink flowers on the same plant), the pH of the soil must be 5.5 and pH 6.5.
