Pack Size: 20, 100, 300
Year: 2025
Accepted Scientific Name: Trichocereus terscheckii
Origin and Habitat:
Native to Argentina, Trichocereus terscheckii thrives in dry, mountainous regions at elevations up to 2,000 meters. It is commonly found in rocky, well-drained soils, where it endures extreme temperature variations and prolonged droughts. This species is well-adapted to arid environments, developing a deep root system to access scarce water sources.
Description:
Also known as the Argentine Saguaro, Trichocereus terscheckii is a large, columnar cactus that can reach up to 30 feet (900 cm) in height and 12 inches (30 cm) in diameter. Its thick, ribbed stem is covered in long, golden spines. In late spring to summer, it produces large, fragrant, white, funnel-shaped flowers that bloom at night.
Cultivation:
Zone: Suitable for USDA Zones 9-11.
Temperature: Prefers temperatures between 10-40°C and is highly drought-tolerant.
Growth Rate: Slow-growing but can reach substantial heights over time.
Soil: Requires well-draining soil with pumice to prevent root rot.
Watering: Water deeply but infrequently, allowing soil to dry completely between waterings. Reduce watering in winter.
Fertilizing: Apply a diluted cactus fertilizer every 2-3 weeks during the active growing season.
Light: Prefers full sun; strong light promotes healthy growth and spine development.
Pests and Diseases: Susceptible to mealybugs and fungal infections if overwatered; ensure proper ventilation and drainage.
Germination Info:
Temperature: 27°C
Surface Sown: Yes
