Sempervivum herfriedianum

A houseleek from the high mountains of northeastern Türkiye, recorded around 2,000 m where winters are long and snowy. Like other alpine Sempervivum it is fully frost-hardy and does best outdoors in full sun with sharp drainage, not as a houseplant.

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

Inferred from the genus: rosettes in rock crevices, screes and thin stony turf in open alpine or subalpine terrain.

The single locality is at about 2,100 m in the Pontic mountains.

Northeast Türkiye

🔒 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.