Oscularia deltoides

A shrubby mesemb from the southwestern Cape, with grey-blue, toothed, triangular leaves, reddish stems and masses of scented pink flowers in spring. It grows in the cool, wet winter, tolerates dry summers, and is easy in a sunny, well-drained spot with a cool winter.

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

Rocky sandstone outcrops and slopes in fynbos and renosterveld of the winter-rainfall Cape, often rooted in crevices and spilling over rock.

Lowland to lower mountain slopes; the dated records sit at 229-700 m, median about 410 m.

Cape Provinces

🔒 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. Photo from Wikimedia Commons, used under its CC BY-SA 2.0 licence, unmodified.