Corryocactus BREVISTYLUS

Corryocactus BREVISTYLUS - Short-styled corryocactus, Corryocactus brevistylus, Sanky, Sancayo.

Corryocactus is a genus of South American cacti in the cactus family (Cactaceae), comprising about two dozen species. All of them originate from Peru, Bolivia, and Chile, where they grow on the rocky slopes of the Andes, often at significant altitudes above sea level.

Plants are shrubby or tree-like, with upright columnar stems branching from the base and forming dense clusters. Height ranges from 1 to 5 m (3 to 16 ft) depending on the species. Ribs are well-defined, and the stems are usually densely covered with sturdy spines.

Flowers are bell-shaped or tubular, with a short floral tube often covered with small scales, most frequently in yellow or orange shades. Fruits are large, globose, juicy, edible in several species, containing small dark seeds.

Short-styled corryocactus is a species distributed from Ayacucho in Peru to the Tarapaca region in northern Chile, where it grows in the Andes at elevations of 2,000 to 3,500 m (6,560 to 11,480 ft). A robust shrubby cactus 1-3 m (3-10 ft) tall, branching at the very base and forming compact groups, with individual specimens growing noticeably taller.

The stem diameter is 6-10 cm (2.4-4 in), ribs are well-defined, and spines are strong and long. Flowers are large, yellow, funnel-shaped. Fruits are greenish-yellow, juicy, globose, about 10-12 cm (4-5 in) across, densely covered with spines on the outside.

Corryocactus seeds are small, dark, and ripen in large juicy fruits. Soaking such seeds is impractical, so the substrate itself is disinfected: before sowing, it is drenched with a weak solution of potassium permanganate and dried slightly. Scarification and stratification are not required.

Sowing is carried out on the surface, without burying, into cactus substrate diluted half-and-half with sand. The sowing is moistened from a spray bottle with a growth stimulant solution: SUPERthrive, HB-101, Aminosol, Epin, or Zircon, covered with glass or plastic film or placed in a propagator, and germinated in light, but not in direct sun, at a temperature of 20-25 °C (68-77 °F).

Under favorable conditions, the first sprouts appear within 1-2 weeks; main germination is usually completed within a month, while individual seeds may take longer. Seedlings require daily airing; waterlogging and drying out of the sowing are unacceptable. Pricking out is carried out after the appearance of the first spines, into individual small pots.

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The plant needs a bright sunny location, with light partial shade being acceptable.

In winter, the temperature should not drop below 12 °C (54 °F). The plant originates from high mountains and tolerates daily temperature fluctuations well, provided it is kept dry.

In summer, the substrate should not dry out completely; watering is regular and moderate. In winter, watering is significantly reduced.

The substrate needs to be loose, mineral-based, with a small addition of humus, coarse sand, and perlite. Drainage is placed at the bottom of the pot, and a stable container is chosen because an adult plant becomes heavy.

Fertilizer is applied during the active growth period using cactus fertilizer; it is not used during the dormancy period.

Repotting is performed as the pot is outgrown, into dry substrate, with a drying period before the first watering. In addition to seeds, Corryocactus is propagated by rooting stem cuttings.