Sedum marmorense

A rosette-forming stonecrop described in 2018, known only from high outcrops in the Marble Mountains of northwestern California at about 1,950-2,320 m. It is an alpine rock plant: full sun, snow cover in winter, a bright dry summer and mineral, lime-rich crevices.

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

It grows in exposed crevices and ledges on marble and other rock outcrops in the subalpine zone, alongside conifers and other rock-garden plants.

Recorded from 1,957 to 2,320 m, median 2,228 m.

California

🔒 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.