Petrosedum rupestre

A mat-forming, cold-hardy stonecrop with needle-like blue-green leaves, native to rocks, dry grassland and sandy ground across much of Europe. It wants full sun, sharp drainage and a real cold winter, and is far happier outdoors than 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 in the ground

Where it grows wild

Rock outcrops, walls, dry stony grassland, sandy heaths and pine-forest clearings, usually on thin, quick-draining soils in full sun.

Recorded from 33 to 1,835 m, median about 595 m.

AlbaniaAustriaBelgiumBulgariaCorseCzechia-SlovakiaDenmarkEast Aegean Is.FranceGermanyHungaryItalyNW. Balkan Pen.NetherlandsNorwayPoland

🔒 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 Petrosedum

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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.