Pack Size: 20, 100, 300
Year: 2025
Accepted Scientific Name: Echinocereus pectinatus rigidissimus
Origin and Habitat:
Natively found in northern Mexico and the southwestern United States, particularly in Chihuahua, Sonora, and Arizona, Echinocereus pectinatus rigidissimus thrives in arid, rocky environments with well-draining soil. This cactus grows in desert regions at elevations ranging from 1,000 to 2,000 meters, where it experiences extreme temperature variations and prolonged drought periods. The species has adapted to these harsh conditions by developing dense spination, which provides protection from intense sunlight and helps minimize water loss. Its habitat consists of limestone slopes, gravelly hills, and dry washes, where it coexists with other drought-resistant flora.
Description:
A solitary, slow-growing cactus, Echinocereus pectinatus rigidissimus forms a cylindrical stem reaching up to 12 inches (30 cm) in height and 4 inches (10 cm) in diameter. The plant is covered in dense, closely packed radial spines, which give it a strikingly rigid, comb-like appearance. The spines often exhibit bands of pink, white, and yellow, creating an ornamental effect. During late spring to early summer, this cactus produces large, funnel-shaped flowers with a deep magenta to pink hue and a bright yellow center, offering a stunning contrast against the spiny body.
Cultivation:
Zone: Suitable for USDA zones 9-11.
Temperature: Thrives in temperatures between 10-35°C but can tolerate brief dips to 0°C if kept dry.
Growth Rate: Slow-growing species, requiring patience for full development.
Soil: Requires a well-draining substrate, best achieved with a pumice-based mix for optimal root aeration.
Watering: Water sparingly, allowing the soil to dry completely between watering sessions. Reduce watering significantly in winter.
Fertilizing: Apply a diluted cactus fertilizer every 2-3 weeks during the growing season (spring to summer).
Light: Prefers full sun to partial shade; bright light enhances spine coloration and flower production.
Pests and Diseases: Susceptible to mealybugs and root rot if overwatered; ensure proper ventilation to prevent fungal infections.
Germination Info:
Temperature: 27°C
Surface Sown: Yes
