Cereus hildmannianus
A large, fast-growing columnar cactus from southern Brazil, Uruguay, Paraguay and northeastern Argentina, widely grown as the hedge cactus or night-blooming cereus, and in monstrose forms. It takes humid summers, regular rain and cool winters, so it is far more forgiving than desert cacti. It needs full sun and room to grow.
Where it grows wild
Rocky outcrops, open grassland and scrub, river margins and dry forest edges in the subtropical lowlands of southern South America.
Recorded from about 3 m to about 1,010 m, median about 410 m.
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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 4.0 licence, unmodified.