Russian sage is a beautiful plant that is robust and can thrive in poor and chalky soils in exposed areas making it ideal for coastal gardens that experience strong salty winds it39s flowers are lavender blue and has silvery green aromatic foliage british bred perovskia 39lacey blue39 has a neat compact habit making it well suited to containers as well as borders it looks great planted alongside lavender or in long lines down the side of driveways or in large blocks in wide b