Kalanchoe gastonis-bonnieri

The donkey-ear kalanchoe of Madagascar: broad, grey-green, often brown-spotted leaves that sprout plantlets at their tips. It comes from a hot climate with a long, almost rainless dry season, so it wants strong light, warmth and a dry winter rest.

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

Wild records are scattered across western, northern and south-western Madagascar, mostly in seasonally dry country. Like its relatives it most likely grows among rocks and on well-drained slopes in open dry forest and scrub; habitat detail specific to this species is thin.

The weighted climate sites run from near sea level to about 800 m; no elevation is recorded on the specimens themselves.

Madagascar

🔒 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.