Sedum callichroum

A high-alpine stonecrop from the Zagros Mountains of Iran, recorded at about 3,000–4,000 m. It sits under snow through a hard winter, grows in a short cool spring and summer, and endures bone-dry summer air with intense sun. It needs a cold winter and cannot take warm, humid nights.

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

Probably grows in alpine scree, rock crevices and stony slopes above the treeline, like other high-mountain Sedum of the Zagros.

Records sit at about 3,000–4,000 m in the Dena range of the central Zagros.

Iran

🔒 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.