Sempervivum altum

A Caucasian houseleek known from mountain rocks of the Transcaucasus. Like other Caucasian Sempervivum it is fully hardy and does best outdoors in full sun, in a gritty mix, with winter cold and protection from prolonged wet.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

No locality data are available; the profile follows the genus, which forms rosettes on rocks, scree and thin soil in open mountain sites.

No recorded elevations; Caucasian Sempervivum mostly grow in the subalpine and alpine zones, roughly 1,500 to 2,800 m.

Transcaucasus

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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More Sempervivum

Sempervivum tectorum Sempervivum ciliosum Sempervivum calcareum Sempervivum arachnoideum Sempervivum marmoreum Sempervivum pittonii Sempervivum macedonicum Sempervivum alatum Sempervivum annae Sempervivum armenum Sempervivum artvinense Sempervivum atlanticum All 65 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.