Cobweb Houseleek (Sempervivum arachnoideum) in the Sempervivum Database

Common names:
Give a thumbs up Cobweb Houseleek
Give a thumbs up Hen and Chicks
Give a thumbs up Houseleek
Give a thumbs up Live Forever

Data specific to Sempervivum (Edit)
Awards: AGM: 1993
Size: Mini up to 1/2"
Soil type: Well draining
Loamy / Medium
Sandy / light
Foliage: Webbing
Water: Very low
Average
Does not like wet feet
Uses: Accent
Containers
Pests and Diseases: Pest resistant

General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Dry
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
Suitable Locations: Alpine Gardening
Uses: Provides winter interest
Groundcover
Suitable for miniature gardens
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Propagation: Seeds: Provide light
Stratify seeds: Stratifing seeds may improve germination, but is not required
Suitable for wintersowing
Sow in situ
Will not come true from seed
Other info: Sempervivum cross pollinate easily, so you may not know what you will get from the 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
Awards and Recognitions: RHS AGM

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Sempervivum Companion PlantsSempervivum Companion Plants
March 13, 2013

When ATP forum moderator Lynn Smith (valleylynn) asked me to write this article, she commented in her typically enthusiastic way that a visit to our nursery had transformed her thinking about gardening with Sempervivums. At Wild Ginger Farm, we specialize in alpine and rock garden plants and feature Sempervivums in our naturalistic display gardens. Written by Emma Elliot of Wild Ginger Farms.

(Full article18 comments)
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Discussion Threads about this plant
Thread Title Last Reply Replies
Banner for June 9, 2018 by dirtdorphins by dirtdorphins Jun 11, 2018 2:29 PM 14
Hello and help...maybe by JediArachne Jun 7, 2018 8:29 PM 8
Source for Sempervivum pittonii by GregC Apr 3, 2018 11:05 PM 9
Show off your glaucous grays! by Jai_Ganesha May 26, 2018 10:05 AM 70
Sempervivum Chat & photos 2018 by CDsSister Jun 20, 2018 7:54 PM 1,812
Sempervivum of the Day: Hen and Chicks (Sempervivum arachnoideum 'Rubrum') by valleylynn Oct 30, 2017 7:42 PM 4
Question about names and "Chick Charms" by Lilydaydreamer Jan 28, 2018 7:49 AM 60
Sempervivum and Jovibarba chat & photos 2017 by valleylynn Jan 2, 2018 7:45 PM 3,238
My first ever Sempervivum plants by ediblelandscapingsc Sep 27, 2016 2:04 PM 13
Proper pronunciation of 'Cebenese' by cahdg6891 Aug 11, 2016 5:44 PM 23

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