Schlumbergera truncata
A forest cactus from the coastal mountains of Rio de Janeiro state, where it grows on tree branches and mossy rocks in humid Atlantic Forest at roughly 700 to 1,000 m. It wants filtered light, mild days, cool nights and steady moisture, and it only sets buds after a spell of long nights and cooler temperatures in autumn.
Where it grows wild
Epiphyte on trunks and branches, sometimes on rocks, in humid montane Atlantic Forest of the Serra dos Órgãos and Serra do Mar, where moist Atlantic air condenses on the slopes.
Wild populations sit mostly around 700 to 1,000 m; GBIF records span 13 to 2,000 m (median 900 m), and the low-elevation ones are likely garden escapes or imprecise coordinates.
🔒 Growing it like that
The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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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 4.0 licence, unmodified.