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Sempervivum grandiflorum



A large growing species from the Alps. I got it from Simon Bond at Thuya Alpines.

In their 1986 catalogue, Chiltern Seeds wrote:

"This fine and rather rare specied from the Alps forming rosettes, that can be up to 9ins across, of brown tipped, dark green, fleshy leaves. The yellow flowers, the largest of the genus, are produced in early summer and can be 2 ins or more across."

Plants of the World online says:

"The native range of this species is SSW. & W. Central Alps. It is a succulent perennial and grows primarily in the temperate biome."

World of Succulents says:

"Sempervivum grandiflorum is a small, hardy succulent that forms rosettes of green leaves tipped with red and covered with short, soft hairs. The rosettes can reach a diameter of 6 inches (15 cm) and freely produce offsets on spreading leafy stolons, forming a dense mat over time. The hairy leaves are almost sticky to the touch.
The flowering stem can grow up to 8 inches (20 cm) tall. The flowers are star-shaped, 10- to 15-merous, and can reach a diameter of 1.2 inches (3 cm). They have yellowish petals with a basal purple spot and appear in summer in clusters on a leafy stalk that can grow up to 12 inches (30 cm) tall."



4th June 2005



Writing in the Bulletin of the Alpine Garden Society in 1935, Hugh Miller says:

"grandiflorum Haworth, syn Gaudinii Christ, is good species for the garden. The rosettes are rather flat and the offsets on long stolons. The leaves are dark green, generally with a red-brown tip and strap-shaped. If bruised the leaves have a pungent and rather umpleasant odour - like decaying vegetation - and at most seasons they feel quite sticky. They are covered on front and back with fine hairs and with longer ones at the margins. The flowers, which are very large for the size of the rosette, are yellow with a purple stain at the base of the petal. Some forms - when out of flower - can only be distinguished from S. montanum var. Burnatii by the strong smell and the stickiness of the leaves. The plant appreciates rich soil and seems little affected by damp."





25th February 2006 25th June 2006 21st March 2009



References:
  • Smith, Alan C. - Sempervivum and Jovibarbas , revised ed. 1980
  • Furness, Steve - Sempervivum, a gardeners guide, Alpine Garden Society, 2023
  • Wills, Howard and Sally - Sempervivum and Jovibarba, 2004
  • International Sempervivum Forum, https://sempervivum.aforumfree.com/.
  • Diehm, Horst - sempervivumpage.de, 2001, autotranslated, no longer available online.
  • Sempervivum List online, https://www.sempervivum-liste.de/de, accessed 14.05.2025.
  • AGS Encyclopedia online, http://encyclopaedia.alpinegardensociety.net/plants/Sempervivum/CULTIVARS , accessed 14.05.2025.
  • Martin Miklanek, List of Sempervivum and Jovibarba cultivars, https://miklanek.tripod.com/MCS/cvA-E.html , accessed 12.06.2025.
  • Sempervivum Garden, https://sempervivumgarten.de , accessed 12.06.2025.
  • Plants of the World online, https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:276460-1 , accessed 14.05.2025.
  • World of Succulents, https://worldofsucculents.com/sempervivum-grandiflorum/ , accessed 14.05.2025.
  • Miller, Hugh F. R. - 'An introduction to the genus Sempervivum', Bulletin of the AGS, Vol.3, p.276 (1935)