Calluna vulgaris ‘Hugh Nicholson’ – Spring-Tips are a class of Scotch heather with new growth (from late winter to spring) that contrasts their regular foliage colour. ‘Hugh Nicholson’ features white bell-shaped flowers (in August-September) with medium green scale-like foliage with cream spring tips. Prefers acidic soils with good drainage. Grows 12″ high by 14″ wide. Zone 5.
Calluna vulgaris ‘Robber Knight’ – Scotch heather is native to much of north and west Europe, as well as Morocco and Turkey. ‘Robber Knight’ bears lavender blooms from August to September and has interesting foliage of pale yellow with red highlights on the spring tips. Calluna vulgaris requires part to full sun and will attract bees. Grows 16″ high by 22″ wide. Hardy to zone 5.
Calluna vulgaris ‘Spider’ – Although generally rated at zone 5, Scotch heather can be grown in colder regions (up to zone 3) provided there is enough snow cover – where unreliable, protect plants with a loose mulch of pine boughs. ‘Spider’ has long blooming (July-Sept) white flowers with green foliage that produces cream spring tips. Grows 8″ high by 10″. Zone 5.
Calluna vulgaris ‘Cassa’ – This cultivar has a Dutch name that translates as ‘cash’ and bears rose pink flowers from August to September. The light green scale-like foliage has beautiful spring highlights of pale creamy-yellow and red. Some gardeners prune their spring-tips Calluna in fall (after flowering) in order to enjoy a consistent contour display. Grows 10″ high by 18″ wide. Zone 5.
Calluna vulgaris ‘Poolster’ – ‘Poolster’ translates as ‘Pole Star’ (in Dutch) and features pure white flowers over a long period (July to September). The bright green foliage develops cream coloured new growth from late winter into spring. Many Scotch heather have a spiky upright growth habit but all make good groundcovers when mass planted. Grows 12-18″ high by 18″ wide. Zone 5.