Sempervivum praegeri

A Balkan houseleek from the mountains of Bulgaria. It is fully hardy and wants full sun, sharp drainage and a real cold winter. Grow it outdoors in a trough or rock garden, not indoors.

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

Rosettes form mats in crevices and on stony slopes and rock outcrops in open mountain country, as is typical of Balkan Sempervivum.

Mountain species; the climate point sits at about 1,100 m, and Balkan houseleeks often grow higher, to 2,000 m or more.

Bulgaria

🔒 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.