|The cultivar, 'Emily Brown' is larger than species, as much as three feet in height, and puts forth diminutive, dentated leaves and very dark blue flowers.
C. gloriosus is a compact, low-growing, broad, evergreen shrub. Leaves are oblong, glossy, dark green and finely toothed up to 2 inches long. Dark blue flowers are borne profusely in large lateral cymes up to 3 inches long. Excellent for a shrub border or against a sunny wall.