To 90 cms. Single, white flowers summer/autumn. Clump forming, ground cover. Sun and good drainage. Winter dormant.
To 50 cms. Low mounds of soft green leaves with toothed edges. Small white flowers on long upright spikes in summer. Sun, clump forming hardy perennial. Winter dormant.
To 50 cms. Upright clusters of tiny lilac bells. Ground cover for sun or partial shade. Slower growing variety. Winter dormant,
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