Hydrangea - Pia

Pia Bigleaf Hydrangea, Hydrangea macrophylla 'Pia', is one of the smallest of the hydrangeas, making it excellent for the smaller garden. Pia Bigleaf is a deciduous shrub with a rounded habit that grows to 2 to 3 feet in height and width. A It is a profuse bloomer bearing 3-4" wide, rich dark-pink flowers in mid to late summer and has a red tint to the foliage in fall. Add aluminum sulfate to the soil to make the flowers bluer or add lime to the soil to make the flowers pinker (begin soil treatments well in advance of flowering, as in late autumn or early spring). Soil pH generally affects the flower color of species plants, namely, blue in highly acidic soils and lilac to pink (occasionally red) in slightly acidic to alkaline soils. It tolerates full sun only if grown with consistently moist soils. Crown hardy in zone 5 and best planted in group or mass in a sheltered location in the shrub border. ... additional information