These hardy perennial plants make excellent ground cover and help create beautiful cottage garden style planting schemes they make a lovely companion plant for roses and are superb for edging the front of informal borders or even gently cascading from patio containers their bright autumn foliage extends their season of interest this new collection comprises 39endressii39 39gravetye39 39nodosum39 39sang elke39 and chelsea flower show plant of the centenary 39roza