Common names: Scotch heather, ling
Calluna vulgaris is an evergreen groundcover or small shrub which has purple flowers in late summer. It is native from northern Europe to Morocco. It grows up to 60 cm (2'). It likes acid, dry soil. It can quickly become shapeless if not pruned. Over 800 cultivars have been developed.
Calluna, erica, and daboecia are all commonly called heathers. You can distinguish between calluna and erica by their leaves. Erica has needle-like leaves, but those of calluna have scale-like, overlapping leaves.
Photos taken by Hughie Jones in late August.