This a genus of heather-like plants, from northern hemisphere moors. They are distinguished by the stems closely packed with tiny, adpressed leaves, and mases of pretty little white, hanging bell flowers. They like a combination of sunshine and moisture to grow and flower well.

Cassiope lycopodioides 'Beatrice Lilley' is a variety that is favoured because it flowers so well. The species has very slender stems of leaves.