We offer rare, unusual, and distinctive plants — and wholesale service for retail customers placing larger orders.

Gymnocalycium cardenasianum var. horridispinum

· Premium
In Stock · Ships in 48h
$ 45.00 / plant
Attribute Option
Quantity Qty
1

Cataloged as

Sales Type Same Batch, Retail
Product Size W5cm
Weight 0.2 kg
Propagation Method Seed-grown
Genus Gymnocalycium

Description

Geographic & Climate

Geographic Coordinates: Argentina, Córdoba Province (Salcasate, La Mudana, and surrounding areas in the Sierras de Córdoba, roughly 30°55'S to 31°15'S, 64°55'W to 65°10'W)

Climate Classification: Subtropical Highland / Semiarid Continental Climate (Köppen: Cwb / BSk)

Habitat Characteristics: Elevation range from 700 to 1,200 meters above sea level. Inhabits rocky slopes, montane scrublands, and sheltered rock crevices, growing in mineral-rich, highly porous, sandy-granitic soil matrices with rapid drainage and moderate seasonal rainfall concentrated in the warm summer months.

Botanical Morphology

Diagnostic Features: Distinguished from typical Gymnocalycium monvillei by its exceptionally stout, rigid, and prominent metallic-grey spines with brownish tips. Possesses 10 to 15 broad, deep ribs with pronounced, angular chin-like protuberances (mentums) beneath the areoles. Central spines number 1 to 4, stout, straight or slightly curved, projecting outward up to 5 cm long. Flowers are exceptionally large (6-7 cm in diameter), funnel-shaped, silky white with a pale pink throat or entirely vibrant pink/violet-pink.

Growth Habit: Solitary geophytic cactus with globular to short-columnar stems, eventually reaching 15 to 40 cm in height and 8 to 18 cm in diameter. Exhibits moderate to fast growth rates under optimal cultivation conditions, entering dormancy during cool, dry winters.

History & Etymology

Etymology: The specific epithet "horridispinum" derives from the Latin words horridus (meaning bristly, rough, or horrifyingly prickly) and spina (meaning spine), referring to the remarkably fierce and formidable spine formation.

Historical Context: First discovered and collected in the Córdoba province of Argentina, this taxon was subsequently introduced and described to science and horticulture by German/Austrian cactus authorities, gaining rapid popularity among collectors for its striking, metallic-grey armature which stands out distinctly from other members of the genus.

Care Guide

Essential Care Tips for Thriving Plants

Light

Provide partial to full sun. Most plants thrive on direct UV exposure. Avoid placing behind window glass, as it filters out the essential UV rays needed for healthy growth.

Water

Follow the "Soak and Dry" principle. Ensure the top 2–3 cm of soil is bone dry before watering (use the finger test). Reduce frequency in winter, but do not stop watering entirely.

Temperature

The ideal range is 18–35 °C. Maintain temperatures above 5 °C during winter. Please note that temperatures below 0 °C pose a significant risk of plant death.

Humidity

Best kept at 30–50% humidity. Note: High air humidity is not a substitute for root watering. Avoid overly damp areas to prevent root rot or leggy side shoots.

Soil

A loose, well-draining medium is ideal. A mix containing 50–70% grit or mineral soil is recommended for aeration. Outdoor ground planting is also a viable option.

Fertilizer

Fertilize during repotting using Osmocote A2 slow-release fertilizer. Apply sparingly twice a year, or adjust the fertilizer type based on your specific home environment.

Planting Guide

Start Your Green Journey in 4 Steps

Unbox & Inspect

Carefully unpack and inspect the plant’s body and roots. We recommend taking photos or videos immediately for your records. Place it in a shaded, well-ventilated spot for 1–2 days to acclimate to its new environment.

Potting & Placement

After 24 hours of rest, pot the plant using slightly moistened soil. Place it in a bright, airy location to encourage recovery. Keep away from AC vents or heaters to prevent damage from temperature fluctuations.

First Watering

Use water that has sat for at least 24 hours. If using the damp-potting method, wait 2–3 days before the first watering. Ensure a thorough soak until water drains freely from the bottom.

Daily Care

Monitor leaf condition and soil moisture daily. If the soil remains damp, increase ventilation rather than watering. Proper airflow is essential to prevent root rot and ensure lasting health.