Calluna vulgaris 39dark star39 is a pretty little evergreen heather variety with a low spreading habit calluna has double flowers in all shades between crimson and pink the flowers are so prolific that they virtually obscure the dark green foliage like all heathers they prefer an acid soil and will provide good ground cover and a flash of colour from august to november they39d look great in containers too height 20cm 4083441 spread 35cm 40143441