About
A semi-evergreen perennial forming a wide mat to 20cm in height, with dark green, elliptic leaves and erect spikes of small pale pink flowers that deepen to crimson with age.
About the genus
A genus of herbaceous, rhizomatous perennials with erect, unbranched stems, bearing short terminal spikes of small, white or pink, bell-shaped flowers
Growing conditions
SunlightFull sun, Partial shade
Soil typeClay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Poorly-drained
AspectSouth-facing, North-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeHerbaceous Perennial, Bogs
HabitMatforming
FoliageSemi evergreen
Height0.1-0.5 metres
Spread0.5-1 metres
Time to full height5-10 years
Suggested usesRock garden, Cottage and informal garden
Care notes
CultivationGrow in any moist soil in full sun or partial shade See for further information about RHS plant trials and awards
PruningCut back after flowering
PropagationPropagate by division in spring or autumn
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free