= Water twice per month or less, once established.
= Water about once per week, once established.
= Water about twice per week, once established.
= Water three days per week, or more.
Use the plant water needs as a guideline. Actual plant water needs will vary for several reasons, including weather conditions, soil type, sun exposure, root depth, wind and elevation. Adjust your watering schedule as needed to meet the plants' needs at your site. Water recent transplants more often than established plants.
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Sempervivum arachnoideum
very low
pink
summer
2 to 4 in.
8 to 10 in.
No
southern Europe
sun
USDA zones 3-8
hardy to 10,000 ft.
Cobweb houseleek is a very small plant that grows in a clump of small rosettes. The mid-green to red leaves grow in a tight set of circles, with white threads crisscrossing between the leaves. New rosettes will grow from the parent plant, connected by a stem, and form a colony.
Pink flowers bloom on a short stalk, after which, the individual rosette dies.
Cobweb houseleek is an interesting plant to tuck in spaces between boulder walls, stepping stones or rock gardens.
This plant performs well in a rock garden at the Xeriscape Demonstration Garden. It also is a great plant for troughs and pots.
None generally needed. Individual rosettes die after flowering, so remove dead sections if needed.
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