If space is tight in your yard, you can still enjoy lush hydrangea blooms with this small shrub, which grows 2 to 3 feet tall and wide. Flower color shifts from a deep violet-purple in acid soils to pink in basic soils. Use this reblooming hydrangea in containers, as a specimen plant, to edge planting beds or as an informal hedge. Hardy in Zones 5-9. Botanical name: Hydrangea macrophylla
