Heather is a highly branched evergreen shrub. The numerous stems take root at the base, and there are also a large number of short side shoots (2). The leaves are very small and scale-like, their sides are often curled back so much that they are triangular in cross-section (2). The small reddish-purple flowers are borne on narrow spikes (4). Shrubs typically grow to around 60cm in height, but may occasionally reach 1 m (2).