A new and distinct Hydrangea cultivar named `INH-HYD-B4` is disclosed, characterized by purple/bronze stems and young foliage, and a large inflorescence. The new variety is a Hydrangea, suitable for outdoor container and garden purposes. It was discovered as a seedling from the planned breeding program. This seedling is result from a crossing made in July 2001 of the female parent, an undistributed proprietary variety referred to as 347 with the male parent, an undistributed proprietary variety referred to as 346. It was selected by Claudie Lambert and Helene Bertrandduring the Summer of 2005 in at the research facility inAngers,France.

USPatent PP20780, February 23, 2010

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