Vigorous and upright growing, evergreen shrub, valued for luxuriant rich green foliage and medium, semi-double, phlox pink flowers over a long period, starting early. Like a C. x williamsii. Prefers sheltered positions & well drained lime free soil.
Hardy in a sheltered site in most UK, Coastal France and northern Italy and Pacific Northwest gardens, but may be damaged in severest winters. Often early into flower and growth.