Hydrangea macrophylla 'Kastlen / Kasteln' (Bigleaf Hydrangea)

Hydrangea macrophylla 'Kastlen / Kasteln', commonly known as Bigleaf Hydrangea, is a deciduous shrub with large, showy flowers. The flowers can vary in color from pink to blue, depending on the soil pH. It is a compact and bushy plant that blooms from late spring to early fall.