The Main Plant entry for Sempervivum

This database entry exists to show plant data and photos that apply generically to all Sempervivum.

General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Leaves: Evergreen
Flowers: Showy
Flower Time: Summer
Late summer or early fall
Fall
Other: It may be several years before it blooms
Uses: Provides winter interest
Groundcover
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Propagation: Seeds: Provide light
Stratify seeds: Stratifying seeds may improve germination, but is not required
Suitable for wintersowing
Sow in situ
Will not come true from seed
Propagation: Other methods: Offsets
Containers: Suitable in 1 gallon
Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Monocarpic

Image

Photo Gallery
Photo by gg5
Location: Seattle WA 
Date: 2013-03-18
Location: FPF Home, Warren County, Kentucky
Date: 2022-05-15
Watermarks, NoID from Big Blue Box Store, May, 2022
Location: In my garden in Kalama, Wa.
Date: 2008-07-04
Location: FPF Home, Warren County, Kentucky
Date: 2022-05-15
NoID from Big Blue Box Store, May, 2022
Location: FPF Home, Warren County, Kentucky
Date: 2022-05-15
NoID from Big Blue Box Store, May, 2022
Location: FPF Home, Warren County, Kentucky
Date: 2022-05-15
NoID from Big Blue Box Store, May 2022
Location: Outside corner of dog's pen. Full sun all day.
Date: 2014-07-24

Photo Courtesy of Mountain Crest Gardens. Used with Permission.
Location: Kalama, Wa.

Photo Courtesy of Mountain Crest Gardens. Used with Permission.
Location: Seattle WA 
Date: 2014-06-19
Location: In my garden in Kalama, Wa.
Date: 2008-07-04

Photo courtesy of Joy Creek Nursery
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Comments:
  • Posted by sandnsea2 (Cape Cod, MA, USA - Zone 7a) on Mar 16, 2012 5:34 PM concerning plant:
    The old British folkloric common name for the Sempervivum is rather unusual. It is "Welcome home husband though never so drunk".
  • Posted by Marilyn (Kentucky - Zone 6a) on May 21, 2013 1:35 AM concerning plant:
    "Sempervivum are succulent perennials forming mats composed of tufted leaves in rosettes. In favourable conditions they spread rapidly via offsets, and several species are valued in cultivation as groundcover for dry, sunny spots.

    Although their subtropical cousins are very frost-sensitive, sempervivums are among the most frost-resistant succulents, making them popular garden plants. They tend to grow best in dry conditions with well-draining, sandy soil to prevent soggy roots. They require only moderate watering, especially during warmer months, with occasional protection from extreme sun exposure.

    Sempervivums also make suitable plants for containers, and do well in breathable terracotta, concrete, and cement pots. They have also been known to grow in rock crevices, metal containers, succulent wreaths, roof shingles, and anywhere else that allows adequate root drainage.

    "Semp-lovers" are numerous and often have many different cultivars in their collections. Sempervivums are very variable plants and hence hundreds, maybe thousands of cultivars were created, but a lot of them are not much different from each other. The main interest of these cultivars is not their flowers, but form and color of the rosette-leaves. The most colorful time is generally from March till June."

    Taken from wikipedia's page at: http://en.wikipedia.org/wiki/S...
  • Posted by kqcrna (Cincinnati, Oh - Zone 6a) on Aug 25, 2012 4:07 AM concerning plant:
    Wintersows well. Germination rate very high. Seedlings are slow growing.
  • Posted by teresasab1 on Jan 12, 2018 8:47 AM concerning plant:
    Is Sardonyx also known as Sempervivum? In other words, what is Sardonyx? Is it just a variety of Sempervivum?
    Thank you!
Plant Events from our members
chelle On January 30, 2015 Seeds sown
From 'Commander Hay'

Warm 3wks, then move outdoors.
MissMew On May 1, 1998 Obtained plant
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Untitled by sandnsea2 Oct 23, 2011 2:55 PM 0
Untitled by tabby Sep 12, 2012 11:26 AM 3
Beautiful! by plantladylin Jan 11, 2013 10:33 AM 2
Angel semp garden by valleylynn Jan 12, 2013 7:48 PM 11
Sempervivum bloom by valleylynn Jan 13, 2013 11:37 AM 2
NOID Sempervivum by valleylynn May 5, 2013 8:31 PM 26
oops by Patty Jul 27, 2014 6:13 PM 1
Sempervivum by valleylynn Nov 8, 2013 12:12 PM 4
Wonderful NOID Sempervivum by valleylynn Jan 25, 2016 12:37 PM 0
Sempervivum 'Frosty' by valleylynn Jun 21, 2016 5:02 PM 0
Sempervivum 'Frosty' by valleylynn Jun 22, 2016 7:46 AM 2
Sempervivum 'Commander Hay' by valleylynn Jun 25, 2016 7:28 PM 7
Sempervivum 'Commander Hay' by valleylynn Jul 6, 2016 9:47 PM 4
Sempervivum 'Commander Hay' by valleylynn Jun 25, 2016 12:42 PM 0
Sempervivum 'Commander Hay' by valleylynn Jun 25, 2016 12:50 PM 0
Sempervivum 'Commander Hay' by valleylynn Jul 3, 2016 4:08 PM 0
Sempervivum 'Commander Hay' by valleylynn Jul 3, 2016 8:57 PM 2
Sempervivum 'Glowing Embers' by valleylynn Jul 6, 2016 9:44 PM 2
Sempervivum 'Moss Rose' by valleylynn Jul 6, 2016 2:17 AM 5
Sempervivum 'Pacific Rim' by valleylynn Aug 1, 2016 12:42 PM 0
Sempervivum 'Pacific Rim' by valleylynn Aug 1, 2016 12:43 PM 0
Sempervivum 'Pacific Rim' by valleylynn Aug 1, 2016 12:47 PM 0
Incorrect plant by valleylynn Feb 26, 2020 6:04 PM 4
Lovely semp by valleylynn Apr 7, 2020 11:16 AM 4

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