| Sempervivum calcareum | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Saxifragales |
| Family: | Crassulaceae |
| Genus: | Sempervivum |
| Species: | S. calcareum
|
| Binomial name | |
| Sempervivum calcareum Jord.
| |
Sempervivium calcareum, the houseleek, is a species of flowering plant in the stonecrop family Crassulaceae, native to the southern Alps in Europe. An evergreen succulent perennial, it has a rosette with thick leaves that store water. The leaves are usually green with reddish-purple tips. This plant reproduces with asexual budding and monocarpic sexual reproduction.[1]
Sempervivum calcareum is cultivated as an ornamental garden plant. It is suitable for a well-drained spot in full sun, such as a rockery. The cultivars 'Extra',[2] 'Guillaumes'[3] and 'Sir William Lawrence'[4] have gained the Royal Horticultural Society's Award of Garden Merit.[5]
- ^ "Sempervivum calcareum". World of Succulents. Retrieved 9 November 2018.
- ^ "RHS Plantfinder - Sempervivum calcareum 'Extra'". Retrieved 9 November 2018.
- ^ "RHS Plantfinder - Sempervivum calcareum 'Guillaumes'". Retrieved 9 November 2018.
- ^ "Sempervivum calcareum 'Sir William Lawrence'". RHS. Retrieved 5 March 2021.
- ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 96. Retrieved 9 November 2018.