About
Sir William Lawrence' is a mat-forming, evergreen, succulent perennial forming rosettes of fleshy, ovate, and pointed grey-green leaves tipped with maroon red, each rosette around 2cm in diameter. Clusters of sticky, pale green flowers flushed with purple are borne on short stems in summer.
About the genus
Sempervivum are evergreen perennials forming mats of fleshy-leaved rosettes, often attractively coloured, with star-shaped pink or pale yellow flowers in summer
Growing conditions
SunlightFull sun
Soil typeLoam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureWell-drained
AspectSouth-facing, North-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeAlpine Rockery, Cactus Succulent
HabitMatforming
FoliageEvergreen
HeightUp to 10 cm
Spread0.1-0.5 metres
Time to full height5-10 years
Suggested usesPatio and container plants, City and courtyard gardens, Coastal, Cottage and informal garden, Gravel garden, Rock garden
Care notes
CultivationGrow in moderately fertile well-drained soil in full sun. Protect from excessive winter wet. Suitable for rock garden, scree bed, wall crevice, trough or alpine house
PruningCarefully remove spent rosettes after flowering
PropagationPropagate by rooting offsets in spring
Pest resistanceMay be damaged by sempervivum leaf miner, slugs and snails, and vine weevil larvae
Disease resistanceMay be susceptible to a rust