From the sources "Hydrangeas for American Gardens," by Michael A. Dirr (2004), and "Encyclopedia of Hydrangeas" C.J. and D.M. Van Geldere...Read Moren (2004 - Timber Press):
Compact and vigorous growing, up to 5 feet. White ray-flowers surround greenish pink fertile flowers. The four sepals are cup shaped and entire or slightly dentate. Suitable as a pot plant, also very good for gardens. Lateral branches produce a second flowering period in late summer. Bachstelze means "wagtail."
From the sources "Hydrangeas for American Gardens," by Michael A. Dirr (2004), and "Encyclopedia of Hydrangeas" C.J. and D.M. Van Geldere...Read More