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Native OriginCatamarca, Argentina
OriginAdana
TypeNatural Species
ProductionNursery Stock
Doctor's Note

After arrival, let the plant acclimate in a bright position. Do not water until the growing medium has dried throughout; increase direct-sun exposure in stages and confirm that excess water can leave freely through the drainage hole.

KD_TEPHROCACTUS_GEOMETRICUS_001

Tephrocactus geometricus

Golf Ball Cactus

TRY 2,500
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Tephrocactus geometricus is accepted in the current Kew backbone as a natural cactus species native to Catamarca, Argentina. The plant offered for sale is linked to the same species identity in the production catalog; native range and nursery production in Adana are kept as separate facts.

Its practical care centers on strong light, allowing the root zone to dry throughout between waterings, and using a mineral-rich medium that sheds water quickly. Do not move a shade-grown plant abruptly into harsh direct sun; increase exposure in stages. Never leave the pot standing in water.

Segment count, surface appearance, and the visibility of defensive structures can vary among living specimens. A product photograph is not a taxonomic voucher. The accepted name, Catamarca range, two homotypic synonyms, and evidence boundaries are documented in the Botanical Dictionary entry.

Light
Full Sun

Strong light is appropriate. A plant grown in shade should be acclimated to harsh direct sun in stages rather than moved abruptly.

Soil
Airy, mineral-rich, fast-draining cactus mix

Use a drainage-holed pot and an airy, mineral-rich, fast-draining cactus mix.

Water
Measured

Do not water again until the mix has dried throughout. Cool or low-light conditions extend drying time, so watering should become less frequent automatically.

Difficulty
Moderate

Manageable with strong light, complete drying, and fast drainage; the main practical risk is a persistently wet root zone.

Frequently Asked Questions

Where is Tephrocactus geometricus native?
The current Kew record gives Catamarca, Argentina as the native range and places it in the Argentina Northwest floristic region.
How often should it be watered?
Do not use a fixed-day interval. Water after the mix has dried throughout and let excess water escape quickly; drying takes longer in cool or low-light conditions.
Can it take direct sun?
Strong light is appropriate, but a plant grown in shade should be acclimated to harsh direct sun in stages.
Is its conservation status LC?
This review did not verify a maintained IUCN category directly tied to the currently accepted T. geometricus concept, so the unsupported legacy LC value will not be retained.
Is Tephrocactus alexanderi subsp. geometricus a separate species?
In the current Kew backbone that name is a homotypic synonym; the accepted species name is Tephrocactus geometricus.
What growing medium is suitable?
Use a drainage-holed pot and a mineral-rich cactus mix that preserves air space and sheds water quickly.

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