Gasteria excelsa

One of the largest gasterias, a solitary rosette of stiff triangular leaves with sharply toothed white margins, from shady thicket and south-facing cliffs of the Eastern Cape. It wants bright shade rather than full sun, a summer-wet and winter-dry rhythm, and a deep pot for its very large root system.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Dense shady thicket and rocky, south-facing cliffs and slopes, where it is sheltered from the strongest sun.

Measured sites lie at about 130 to 820 m; it is reported up to about 1,500 m in the southern Drakensberg, higher than any other Gasteria.

Eastern CapeSouth Africa

🔒 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.