Sempervivum ermanicum

A houseleek from the high Greater Caucasus of Georgia, known from only a handful of records around 2,700 m in the Kazbegi area. It is a fully hardy alpine rosette plant that needs cold winters, full sun and sharp drainage.

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

Like other Caucasian Sempervivum it grows on rock ledges, scree and thin stony alpine turf. Species-specific habitat detail is scarce; this is inferred from the genus and the recorded locality.

The single climate site sits at about 2,700 m; the records carry no elevations of their own.

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