Leucostele terscheckii

A giant columnar cactus (long known as Echinopsis or Trichocereus terscheckii) of the dry valleys and foothills of northwest Argentina and southern Bolivia. It wants full sun, hot summers with monsoon rain and a cool, almost rainless winter, and is one of the more cold-tolerant big columnar cacti when kept dry.

At home, aim for

Day Cool-growingTargets 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

Open rocky slopes, alluvial fans and dry valleys in Monte and prepuna scrub, standing well above the low shrubs with no shade.

Measured sites sit around 850–1,350 m; the species is generally reported from roughly 500 to 3,000 m in the Andean foothills.

Argentina NorthwestBolivia

🔒 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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More Leucostele

Leucostele chiloensis Leucostele atacamensis Leucostele bolligeriana Leucostele deserticola Leucostele litoralis Leucostele nigripilis Leucostele werdermanniana Leucostele tunariensis Leucostele skottsbergii Leucostele faundezii Leucostele pectinifera Leucostele undulosa

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.