This is a most valuable genus, providing colour over a long period from early summer. Many varieties are suitable for the herbaceous border, but there are also many that are of a size appropriate for rock garden use.
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Dark reddish green mat of foliage with sweet pink flowers.
Vigorous clump-forming perennial with pink flowers and autumn foliage colour.
Light green, aromatic leaves and soft lilac-pink flowers in summer.
Light green, aromatic leaves and soft lilac-pink flowers in summer.
Beautiful finely divided foliage and large purple/blue flowers.
Low growing with creamy-spotted leaves and pinkish-purple flowers.
Brilliant pink flowers above deeply dissected foliage.
Large lavender blue flowers, purple veined, with a white eye,
Dome of deep green leaves and many magenta flowers over a long period.