Sempervivum tectorum
Sempervivum tectorum (Common Houseleek) Care Guide
Featured photosempervivum-tectorum.jpgSempervivum tectorum, sold as Common Houseleek, is a rosette succulent in Crassulaceae. An alpine European rosette succulent traditionally planted on roof tiles (hence the trade name 'houseleek'), with thick green leaves often tipped in red. Forms dense colonies of small offsets around each parent rosette. Like most members of its group it forms tight rosettes of thick fleshy leaves, tolerates long dry spells thanks to its water-storing tissue, and propagates readily from leaves or offsets.
Care facts at a glance
- Light
- Full sun
- Water
- Water deeply when the mix is fully dry.
- Humidity
- 20–50 %
- Temperature
- 5–27 °C
- Soil
- Free-draining gritty cactus mix with extra perlite or pumice.
- Origin
- Mountain ranges of southern and central Europe.
- Mature size
- 5 to 30 cm tall and wide depending on species.
Overview
Sempervivum tectorum sits in Crassulaceae, the same family as Sedum and Echeveria. An alpine European rosette succulent traditionally planted on roof tiles (hence the trade name 'houseleek'), with thick green leaves often tipped in red. Forms dense colonies of small offsets around each parent rosette. The thick succulent leaves store water reserves and the typical rosette architecture maximises sun capture in the species' open native habitats.
Care Priorities
- Full sun or very bright filtered light to keep rosettes compact.
- Free-draining gritty mix.
- Water deeply, then let the mix dry fully.
- Detach offsets to keep colonies tidy and propagate.
Common Problems
Stretched, pale rosettes are insufficient light. Mushy base is overwatering. Brown leaf tips are usually old age and harmless.
Sources & further reading (2)
- encyclopedia — accessed 2026-04-29
- botanical-garden — accessed 2026-04-29
Frequently asked questions
Why was it planted on roof tiles?
S. tectorum was traditionally planted on European roof tiles to seal the gaps between tiles and reduce leaks — the species' name (*tectorum* meaning 'of roofs') refers to the practice. The thick succulent rosettes tolerate the exposed roof environment and are still seen on old houses across Europe.
Why is the rosette stretching upward?
Stretched, elongated rosettes indicate insufficient light. Most rosette succulents need direct sun for at least a few hours a day to stay tight; in dim conditions they reach for the brightest light and lose their compact shape.
Can I propagate from a single leaf?
Yes — most rosette succulents propagate readily from leaves. Twist a healthy leaf cleanly off the rosette, callus the wound for a day or two, and lay it on dry succulent mix. Roots and a new rosette typically appear within a few weeks.
