A range of French hybrids are available. Most notable of these is the cultivar 'Gloire de Versailles', C. americanus × C. coeruleus. C. × pallidus Lindl. is the result of a cross between C. ovatus and the typical form of C. × delilianus. It is generally available as the cultivar 'Marie Simon', which has rose-coloured flowers.
Source: (2002). Rhamnaceae. In: . Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.
Probably the most widely available cultivar within the group of French hybrids. It is a large semi-evergreen shrub with dark green leaves to about 6-7 cm long and prolific clusters of pale blue flowers in summer to early autumn.