Common name: Hydrangea
Botanical name: Hydrangea macrophylla
This deciduous shrub usually grows up to 1-3 m tall. The leaves are opposite, simple ovoid-acute, 7-20 cm long, with a coarsely toothed margin. Its flowers can be white, or range from blue to purple to pink depending on soil pH; in more acidic soils the flowers will be blue, whereas alkaline soils yield a pinkish bloom. White flowered varieties do not change colour regardless of the soil pH.
