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
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Saxifragales
Family: Crassulaceae
Genus: Sempervivum
Species:
S. calcareum
Binomial name
Sempervivum calcareum
Jord.

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]

References

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  1. ^ "Sempervivum calcareum". World of Succulents. Retrieved 9 November 2018.
  2. ^ "RHS Plantfinder - Sempervivum calcareum 'Extra'". Retrieved 9 November 2018.
  3. ^ "RHS Plantfinder - Sempervivum calcareum 'Guillaumes'". Retrieved 9 November 2018.
  4. ^ "Sempervivum calcareum 'Sir William Lawrence'". RHS. Retrieved 5 March 2021.
  5. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 96. Retrieved 9 November 2018.