Sedum maireanum

A small Iberian and Moroccan stonecrop of open siliceous ground in the central and western mountains, mostly around 1,000-1,200 m. It lives through cold wet winters and hot dry summers, so in cultivation it wants full sun, cool nights, a wet spring and a dry, airy summer.

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

Recorded mainly across the granite and slate uplands of central Spain and northern Portugal. Like related small Iberian sedums, it most likely grows in thin soil on rock outcrops and in spots that are wet in spring and then dry out.

Recorded from 30 to 1,924 m, median 1,140 m; most records come from the Sistema Central and the northern Portuguese uplands.

SpainPortugalMoroccoAlgeria

🔒 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.