Data specific to Sempervivum (Edit)
Other Details: SEMPERVIVUM CALCAREUM from C??se (FR), collected by Dr Ben Zonneveld from C??se, in the French Alps
History of species or Cultivar: named by MARY and PETER J. MITCHELL (UK), 1980
Soil type: Dry
Well draining
Loamy / Medium
Sandy / light
Other: The soil type will depend on what your weather conditions are like. Just make sure it drains well.
Water: Very low
Average
Does not like wet feet
Uses: Accent
Containers
Pests and Diseases: Pest resistant
Source: Perennial Obsession

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
Common names
  • Hen-and-Chickens
  • Common Houseleek
  • Old Man and Woman
  • Roof House Leek
  • Houseleek
Also sold as:
  • calcareum 'Limelight'

Photo Gallery
Location: Pacific Northwest, zone 8
Date: 2019-08-31
Photo by Eviesmummy
Location: Washington 8b
Date: 2018-04-06
Location: Pacific Northwest, zone 8
Date: 2018-03-25
Location: Hall's of Heddon nursery, Northumberland, UK
Date: 2018-08-23
Location: Pacific Northwest, zone 8
Date: 2017-05-24
Location: Pacific Northwest, zone 8
Date: 2020-04-21

Date: June 2013
Location: Pacific Northwest
Date: 2011-10-11
Location: Pacific Northwest, zone 8
Date: 2018-02-03
Location: Pacific Northwest, zone 8
Date: 2013-12-07
Location: Pacific Northwest, zone 8
Date: 2016-03-20

Date: June 2013
Location: Germany, Bavaria
Date: 2015-06-25
Location: Zone 5
Date: 2013-05-11
Location: Washington
Date: 2016-06-01
Location: Pacific Northwest, zone 8
Date: 2017-04-10
Location: Washington 8b
Date: 2017-05-18
Location: Pacific Northwest, zone 8
Date: Jan 23, 2013

Date: 2005-05-20
Location: Western Washington
Date: 2016-07-07
Location: Willamette Valley Oregon
Date: 2014-09-02
Location: Pacific Northwest
Date: 2011-08-01
Photo by gg5
  • Uploaded by gg5
Location: Western Washington
Date: 2014-04-22
Location: Pacific Northwest, zone 8
Date: May 3, 2010
Photo courtesy of Cynda Foster, Perennial Obsessions
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