Sempervivum arachnoideumsubsp.tomentosum(C.B.Lehm . & Schnittsp . ) Schinz & Thell .
Woolly Cobweb Houseleek , Cobweb Hen and wench
Sempervivum tomentosum , Sempervivum laggeri , Sempervivum arachnoideumvar.laggeri , Sempervivum webbianum
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Family : CrassulaceaeSubfamily : SedoideaeTribe : SedeaeSubtribe : SedinaeGenus : Sempervivum
This subspecies is aboriginal to the mess of central and southernEurope .
Sempervivum arachnoideumsubsp . tomentosumis a mat - forming succulent that forms rosettes of thick-skulled , fleshy , obovate , mid - unripe to red leave densely get over in white cobweb - like hairs . The rosettes raise up to 1.4 inch ( 3.5 cm ) in diameter .
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The pink , asterisk - shaped flowers are borne in flat cymes on up to 6 inches ( 15 curium ) magniloquent stems in summertime . They can strain a diameter of up to 0.6 in ( 1.5 centimetre ) .
USDA hardiness zone4a to 10b : from -30 ° F ( -34.4 ° C ) to 40 ° F ( 4.4 ° snow ) .
Because of their variability , Cobweb Houseleek easily adapts to local term . Due to the minor factor pool , they become a form or variety quite promptly , dead accommodate to the local weather of heat and cold-blooded , the amount of snow or rainwater , and at what time of the twelvemonth .
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grow in a container , rock garden , scree bed , wall crevice , manger , or alpine house is relatively easy . They are ideal in so many means . They quickly get forming very tight clusters of rosettes , filling in Sempervivum bulwark , mosaics , and topiary . Their shallow yet sinewy ascendant system hold soil in place even in upright plantings . After the plant bloom and sets seed , it will die , but many offsets will take place .
plant life in well - drained succulent dirt admixture in full sunlight to tripping shade . water supply regularly during the growing season and allow the grime to dry out out before watering again . Water very little during the wintertime month .
See more atHow to produce and Care for Sempervivum .
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