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A bushy perennial, flowering in mid-summer, from July to September-October, in dense bunches at the end of branches. Luminous blue flowers with pink filaments and purple anthers. The grey-green leaves have reddish tints in autumn. Excellent bordering flowerbeds and terraces, and in rock gardens and containers. Tolerates chalky and dry soils. Named in tribute to Helen Ann Willmott, an English botanical rose expert. This superb little plant will, also, be perfect, associated with roses as well as other perennials.