Ruby (H5) flowers, VI–X; dark green foliage; provides neat ground-cover; height 26–30cm; spread 46–60cm.
Name used by G. Sinclair in 1825, at varietal level; it is unlikely that the clone presently named ‘Atrorubens’ is identical with the plant Sinclair knew.
Named from atro- = dark; rubens = reddish.The name is sometimes hyphenated, atro-rubens (e.g. J. F. Letts, Hardy heaths & the heather garden: 83 (1966, 2nd edition).).