1 litre sized pot.  Salvia chamelaeagnea is a hardy shrubby Salvia that hails from South Africa and is also known as Rough Blue Sage.  It has strong upright stems with bright green, slightly hairy leaves that can feel sticky to touch.  The blue/mauve/white flowers are formed in whorls along the top of the stems and complimented by a reddish-purple calyx.  Flowers throughout summer and likes a sunny position.