Cleistocactus baumannii

The firecracker cactus: a clumping, upright or arching columnar cactus from the Gran Chaco and surrounding dry lowlands, grown for its S-curved orange to red tubular flowers. It wants full sun, warm wet summers and a dry, cool winter rest, and is one of the easier columnar cacti in cultivation.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Dry Chaco woodland and scrub on sandy and clay soils, often in the open or at the edge of thorn scrub where it gets strong sun. Stems branch from the base and reach about 2 m.

Recorded from 70 to 1700 m, median 400 m; most records are in the lowlands.

ArgentinaBoliviaParaguayBrazilUruguay

🔒 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.