‘Robber Knight’

Lavender (H3) flowers, VIII–IX; downy, soft yellow foliage, becoming duller with red tints in winter; upright; height 31–45cm; spread 46–60cm.

Seedling near ‘Silver Knight‘; found by H. M. J. Blum (Steinwijkerwold, Netherlands) in 1980; introduced by P. G. Zwijnenburg (Boskoop, Netherland) in 1983.

Fantasy name, alluding to parent cultivar.