Sedum citrinum

A small, recently described stonecrop from the Klamath–Siskiyou mountains of far northwestern California, recorded mostly at 950–1275 m. It lives on open rock outcrops with cold, very wet winters and a hot, almost rainless summer, so it wants full sun, a sharp mineral mix and a seasonal rhythm rather than year-round warmth.

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

Open rocky outcrops and thin soil pockets on ledges in mountain conifer country, where few other plants shade it. Details are generalised from Pacific-coast Sedum of rock outcrops; little is published for this species.

Records span 940–1275 m with a median of 1210 m; winters bring frost and likely snow cover.

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.