A deciduous perennial to 50cm high forming a mound of deeply-cut, bluish-green foliage. Upright, reddish stems bear fragrant, tubular, blue flowers with white throats over a long period from spring ...

A bushy perennial with more or less evergreen, bronze -tinted, blue-green, ferny foliage. Clusters of narrowly tubular, light electric blue flowers are produced in spring and again in summer into ...