Light
Bright Indirect Light
Prefers bright, filtered sunlight; protect from intense midday summer sun.
Reference image Cochemiea fraileana
Fraile's Cochemiea
Overview
Cochemiea fraileana (formerly known as Mammillaria fraileana) is a delicate, clustering cactus species native to the arid peninsula of Baja California 1. Characterized by its slender cylindrical stems, hooked spines, and showy pink flowers, this succulent subshrub is highly valued among collectors of desert flora.
Taxonomy and Naming
Originally described under the genus Mammillaria, molecular studies and phylogenetic reorganizations have transferred this species to Cochemiea 2. The specific epithet "fraileana" honors Manuel Fraile, an esteemed plant collector. The genus Cochemiea is prominent within the Cactaceae family, specifically representing many narrow endemics of northwestern Mexico.
Distribution and Habitat
This species is endemic to Mexico, specifically occurring in the state of Baja California Sur 1. It is frequently found on steep rocky cliffs, granitic soils, and arid coastal scrublands near La Paz, typically at low elevations of 100 to 200 meters above sea level.
Appearance
Cochemiea fraileana produces cylindrical stems that are light green to purplish-green, growing up to 15 cm tall and about 3-4 cm in diameter. It offsets freely from the base to form small clumps. The areoles bear 11-12 needle-like, white radial spines and 3-4 darker central spines, at least one of which is strongly hooked. During summer, it produces funnel-shaped pink flowers with darker midstripes.
Cultivation
This cactus thrives in bright, indirect sunlight or filtered sun. While it requires high light levels, protection from harsh, direct midday summer sun is recommended to prevent scorching. Watering must follow the "soak and dry" method, allowing the substrate to dry completely 2. In winter, the plant must be kept dry and cool.
Common Cultivation Mistakes
Overwatering is the primary cause of failure, quickly leading to root rot. High humidity combined with cold temperatures in winter can also trigger fungal infections. Insufficient light leads to etiolation, where the plant grows weak, skinny, and pale.
Bibliography
References
Watering
10-30 Days
Water thoroughly only when the soil is dry. Keep completely dry in winter.
Soil
Fast-draining, highly gritty cactus mix with pumice and coarse sand
Requires extremely gritty, fast-draining soil mix high in pumice or perlite.
Safety
Pet Friendly
Features sharp, hooked spines that can easily snag skin or fur. Keep away from pets.
Difficulty
Moderate
Moderate care level; requires precise watering and excellent drainage to avoid rot.
Native Habitat
Mexico (Baja California Sur)
Endemic to Baja California Sur, Mexico, where it populates steep, rocky coastal cliffs and granitic gravel slopes within dry, arid shrublands.
Frequently Asked Questions
How often should Cochemiea fraileana be watered?
Water thoroughly in summer only when the soil is completely dry (about every 10 days). During the winter dormancy, keep the soil completely dry.
Is this cactus toxic to pets?
Cochemiea fraileana is non-toxic, but its sharp, hooked spines pose a physical injury hazard to curious pets.
What kind of pot should I use?
Terracotta pots with drainage holes are highly recommended to allow the soil to breathe and dry out quickly.
What is the best soil mix?
Use an extremely porous mix consisting of 50% pumice or perlite, 30% coarse sand, and 20% organic potting soil.
When does Cochemiea fraileana bloom?
Mature, healthy plants produce attractive funnel-shaped pink flowers from late spring through mid-summer.
Should I keep the cactus indoors during winter?
Yes, protect it from frost. Overwinter it in a bright, dry, and cool indoor area kept around 5-10°C.
Why is my cactus growing tall and skinny?
This is called etiolation and is caused by insufficient light. Gradually move the plant to a brighter location.
How fast does it grow?
Like most Cochemiea species, it has a slow to moderate growth rate, slowly forming clusters from the base over several years.
How do you propagate it?
It is easily propagated in spring or summer by taking offsets (pups) from the base, letting them callous, and potting them in dry soil.
How can I prevent root rot?
Ensure outstanding drainage, never let the pot sit in standing water, and only water when the substrate is bone dry.