Left to its own designs, this vigorous Hydrangea has a natural upright and arching form, but it also responds well to pruning, making ‘Unique’ an effective choice where space is scarce. The immense flower heads are spectacular and abundant, and true to name are unique in shape, being quite broad at the base and bluntly rounded at the tip. They begin the season a creamy white and gradually darken to a buff pink. Blooms early July–October.
'Unique' bears 8-inch-long white flower heads that fade to pinkish white. It is similar to, but more vigorous than, Hydrangea paniculata 'Grandiflora'. The cultivar name refers to the shape of the flower heads; they are broad at the base and rounded at the tip.