Sempervivum transcaucasicum

A houseleek from the rocky mountains of Armenia, Georgia, Azerbaijan and northeastern Türkiye. It is fully hardy and wants full sun, sharp drainage and a real cold winter, so it does best outdoors in a rock garden, trough or pot. Care follows the measured climate and the well-known needs of the genus.

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 houseleeks it grows in rock crevices, on stony slopes and in thin mountain grassland in full sun.

Recorded from about 170 to 2890 m, median about 1880 m; most populations are montane to subalpine.

TranscaucasusTürkiye

🔒 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. Photo from Wikimedia Commons, used under its CC BY-SA 4.0 licence, unmodified.