Sedum arenarium

A tiny annual stonecrop of sandy and granitic ground in western Iberia, mostly northern and central Portugal. It germinates with the autumn rains, flowers in spring and dies by early summer, so it is grown from seed each year in full sun and sharp sand rather than kept as a perennial.

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

Open, sunny patches of sand, thin soil over granite or schist, rock outcrops and disturbed ground, often among other small annuals.

Recorded from 3 to 2525 m, median about 210 m; most records are from low hills and valleys in northern Portugal.

PortugalSpain

🔒 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.