Pot Size: 8"
Accepted Scientific Name: Trichocereus huascha (syn. Echinopsis huascha)
Origin and Habitat
Trichocereus huascha is native to northwestern Argentina, where it grows on rocky hillsides, dry valleys, and mountainous slopes at elevations of 1,000–2,500 metres. It is adapted to regions with warm summers, cool winters, and seasonal rainfall, thriving in mineral-rich, well-drained soils. This hardy columnar cactus experiences periods of drought in its natural habitat and stores water within its thick stems to survive prolonged dry conditions. Its adaptability, colourful flowers, and manageable size have made it a popular choice for cactus collections, containers, and xeriscape gardens.
Description
Trichocereus huascha, commonly known as the Red Torch Cactus, is a branching columnar cactus that typically grows 24–48 inches (60–120 cm) tall and 12–36 inches (30–90 cm) wide as it produces multiple stems from the base. The bright green stems have 12–18 pronounced ribs lined with clusters of short yellowish to brown spines. In late spring through summer, mature plants produce spectacular funnel-shaped flowers measuring 3–4 inches (8–10 cm) across. Although brilliant scarlet-red is the most common flower colour, cultivated forms may also bloom in orange, yellow, or white. The long-lasting blooms attract bees, butterflies, and hummingbirds, making this species an outstanding ornamental cactus.
Cultivation
Zone: 8–11
Temperature: -10°C to 35°C
Growth Rate: Moderate.
Soil: Use a well-drained cactus soil containing pumice, coarse mineral aggregate, and organic matter. Avoid heavy or poorly drained soils.
Watering: Water thoroughly when the soil has dried completely during active growth. Reduce watering significantly during winter dormancy.
Fertilizing: Feed every 3–4 weeks during spring and summer with a balanced cactus fertilizer diluted to half strength.
Light: Full sun to bright light. Provide light afternoon shade in areas with intense summer heat.
Pests and Diseases: Generally resistant to pests but may occasionally develop mealybugs, scale insects, or spider mites. Overwatering and poor drainage can lead to root rot.
Propagation
Easily propagated from stem cuttings or seed. Allow cuttings to callus completely before planting in dry, well-drained cactus soil.
