Tephrocactus articulatus

Paper Spine Cactus

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Taxonomy

Common Names

Paper Spine CactusPine Cone Cactus

Context

nativeRegion

Northwestern Argentina, South America.

usdaZones

9–11

companionPlants

Other cacti (e.g., Echinopsis), Succulent groundcovers, Agave species

culturalUses

Primarily ornamental; valued in cactus collections for unique segmented appearance.

Care

LightFull sun to partial shade; prefers bright, direct light.

WateringWater sparingly; allow soil to dry out completely between waterings, especially in winter.

SoilWell-draining cactus mix or sandy soil; avoid heavy or water-retentive soils.

FertilizerFeed with diluted cactus fertilizer during the growing season (spring/summer) once a month.

HumidityLow; prefers dry air and good airflow.

TemperatureTolerates a wide range, optimally 15–30°C (59–86°F); can tolerate brief light frosts but better kept above 5°C (41°F).

HabitSegmented, cylindrical to club-shaped stems that detach easily; forms low, sprawling clumps.

Mature Size15–30 cm (6–12 in) tall, 30–45 cm (12–18 in) wide.

Growth RateSlow-growing.

BloomingSpring to early summer; produces white to pale yellow flowers.

DormancyWinter dormancy with minimal water needed.

MethodsStem segments, Seed

DifficultyEasy from stem segments, moderate from seed.

Best SeasonSpring to summer for cuttings; seed in spring.

PruningRemove detached or rotting segments as needed.

RepottingRepot every 2–3 years or when clump outgrows its container.

Pests & DiseasesSusceptible to common cactus pests like scale insects and mealybugs; root rot possible if overwatered.

ToxicityNon-toxic to humans and pets.

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