Sempervivum calcareum explained

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]

Notes and References

  1. Web site: Sempervivum calcareum . World of Succulents . 9 November 2018.
  2. Web site: RHS Plantfinder - Sempervivum calcareum ‘Extra’ . 9 November 2018.
  3. Web site: RHS Plantfinder - Sempervivum calcareum ‘Guillaumes’ . 9 November 2018.
  4. Web site: Sempervivum calcareum 'Sir William Lawrence' . RHS . 5 March 2021.
  5. Web site: AGM Plants - Ornamental . July 2017 . 96 . Royal Horticultural Society . 9 November 2018.