Kalanchoe alternans

A succulent Kalanchoe from the mountains of Yemen and south-western Saudi Arabia, recorded at 700–2,400 m. It suits growers who can give strong light, a mineral mix, and a cool, dry winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Specific habitat notes are not available. Arabian highland Kalanchoe typically grow on rocky slopes, terraces and cliff ledges among scrub, and that is assumed here.

8 records lie at 700–2,400 m, median about 2,075 m.

YemenSaudi Arabia

🔒 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 3.0 licence, unmodified.