Data specific to Sempervivum (Edit)
Hybrid: Yes
Hybridizer: unknown - introduced by Helen E. Payne
Country of Origin: (US) United States
Year of registration: 1980
Other Details: Great variance in form, color and webbing in different growing conditions.
History of species or Cultivar: arachnoideum
Size: Medium 2 1/2" to 4"
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.
Foliage: Webbing
Other: Densely covered with wooly hair, showing red on outside of leaves.
Water: Very low
Does not like wet feet
Uses: Accent
Pests and Diseases: Pest resistant
Availability: Easy to find
Source: SMG
Toxicity: Low risk
Possible skin irritant to some people

General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Leaves: Evergreen
Flowers: Showy
Flower Color: Pink
Flower Time: Summer
Late summer or early fall
Other: It may be several years before it blooms
Suitable Locations: Xeriscapic
Uses: Provides winter interest
Wildlife Attractant: Bees
Resistances: Deer Resistant
Drought tolerant
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
Pollinators: Various insects
Containers: Suitable in 1 gallon
Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Monocarpic

Common names
  • Hen and Chicks
  • Cobweb Houseleek
  • Houseleek
  • Live-Forever
Also sold as:
  • Cebenense

Photo Gallery
Location: Santa Cruz Mountains, California
Date: 2020-03-20
Sempervivum growing in a rock wall
Location: Cotati, CA
Date: 2021-03-19
Sempervivum arach Cebenese
Location: Willamette Valley Oregon
Date: 2014-06-17

Date: 2018-10-26
Location: 8/09 Pacific Northwest zone 8
Date: Aug 2009
Webbing in August
Location: Bay Area California
Date: December 2021
Location: South Jordan, Utah, United States
Date: 2018-06-04
Location: Fairfax, Virginia (May 2022)
Date: 2022-05-08
Location: Kalama, Wa.
  • Uploaded by Joy

Date: 2014-02-03
Location: South Jordan, Utah, United States
Date: 2018-04-27
Location: Parker, CO
Date: 4/6/2013
Location: my garden, zone 7a
Date: 2012-03-19
Location: Fairfax, VA | July, 2022
Date: 2022-07-10
Location: Fairfax, VA | June, 2022
Date: 2022-07-01
Location: Pacific Northwest, zone 8
Date: 2013-11-29
Location: Fairfax, VA | September, 2023
Date: 2023-10-15

8/09 Pacific Northwest zone 8

7/4/2010 PNW zone 8
Location: My garden, zone 4 Wisconsin
Date: 2012-10-22
zone 4 Wisconsin
Location: Tabby's Garden
Date: 2012-05-11
Location: Pacific Northwest, zone 8
Date: Jan 19, 2013 
Webbing in January
Location: Fairfax, VA | August 2022
Date: 2022-08-28
Location: March 2023 | Fairfax VA
Location: Salem, Oregon
Photo compliments of Perennial Obsessions.
Location: Fairfax, VA | July, 2022
Date: 2022-07-27

New Purchase - 08.10 - Zone 6b - TN - SE
Location: March 2023 | Fairfax VA

Photo Courtesy of Mountain Crest Gardens. Used with permission.
  • Uploaded by Joy
Location: my garden zone 7b NC
Date: 2013-06-12
Location: Fairfax, VA | September 2022
Date: 2022-09-11
Location: my garden zone 7a nc
Date: 2012-04-05

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Location: Pacific Northwest, zone 8
Date: Jun 10, 2011
Photo courtesy of Cynda Foster, Perennial Obsessions

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  • Posted by valleylynn (Oregon City, OR - Zone 8b) on Oct 7, 2017 8:14 AM concerning plant:
    This is a lovely arachnoideum type semp when grown well. Observing it over the years I find that it does not do well in full sun during our 2 to 3 months of drought season here in the Pacific Northwest. It tends to burn easily under full sun conditions. If given some protection during the hottest part of the day, say 1/2 day sun or filtered bright light, they will reward you with a lovely colony of web covered semps. Most of the webbing disappears during the wet winter and spring months, but returns with vigor once things warm up and dry out.
  • Posted by valleylynn (Oregon City, OR - Zone 8b) on Mar 4, 2010 4:39 AM concerning plant:
    Handles wet Pacific Norhtwest conditions and produces well. My favorite arachnoid.
Plant Events from our members
lemonFresh On June 27, 2017 Obtained plant
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Discussion Threads about this plant
Thread Title Last Reply Replies
Sempervivum arachnoideum 'Cebenense' cristate form by valleylynn Sep 6, 2013 11:28 AM 2

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