| General Description | A rhizomatous perennial with reddish stems bearing small, 3-lobed leaves and open sprays of starry white flowers 3-4 cm in width, with contrasting red calyces |
| Propagation | Propagate by seed in pots in a cold frame in winter or propagate by division in spring or autumn. |
| Cultivation | Grow in fertile, slightly acid to neutral, moist but well-drained soil in partial shade. Can tolerate full sun if shaded in the hottset part of the day. May need staking. |
| Pests | Generally pest and disease free. |
| Notable Specimens | Lanhydrock, National Trust, Bodmin, Cornwall, England. |
| Flower Description | White or pale rose, bisexual. |
