Flowering from June until October, this one is good value.  Makes large mopheads of lavender blue on acid soil When opening the sepals fade to white at the centres.   Needs some shade as flowers will scorch in full sun.

Gardens found in 28 pre 2000 surveys DA  WAA TR MS

Gardens found in the 10 surveyed in 2010: DA  MS DIN ESV AW

UK  Plant Finder last listed 2006