Raco PBR (H) (Rampp nursery, Germany before 1999)

Radiant (H) (Lemoine) 1908

On alkaline soils the flowers are a beautiful clear pale pink, and on acid soil a striking cobalt blue. Gardens found in 28 pre 2000 surveys TR MS Gardens found in the 10 surveyed in 2010: EBG NAN UK  Plant Finder 2012: Not listed.