The photograph (and the name) tells it all with 'Flasher' - very bright new growth in spring on medium-sized rosettes. Like all the Houseleeks, the colour changes with the seasons and 'Flasher' can't stay this bright for long but it still looks good once growth has matured and the colour faded a little.
It makes nice, tidy mounds of very symmetrical rosettes. 'Flasher' is excellent in a clay pot or pan especially where it can moved into a porch or conservatory and the spring coloured enjoyed. It will do fine on the rockery too.