Scientific: Stenocactus multicostatus 'Zacatecasensis'
Common: brain cactus
Family: Cactaceae
Origin: Mexico

Pronounciation: Sten-o-CAC-tus mul-ti-co-STA-tus

Hardiness zones:
Sunset 12-24
USDA 8-11

Landscape Use: Small rock gardens, cactus gardens, container plant, raised planters.

Form & Character: Solitary, rounded, delicate, but not inviting, interesting, but not touchable.

Growth Habit: Very slow growing to 6 to 10 inches in height, small, and diminutive barrel cactus, sometimes growing a few offshoots with age.

Foliage/texture: Small barrel cactus with tightly packed, wavy ridges, aeroles contain short white spines; coarse texture.

Flowers & fruits: Cultivar 'Zacatecasensis' has small, star-shaped white to pink flowers, each petal has a brownish-purple stripe, flowers of regular species are pink; fruit inconspicuous.

Seasonal color: None

Temperature: Hardy to 15oF

Light: Full to partial sun, no shade.

Soil: Well drained, alkaline soil is best.

Watering: Needs little to no supplemental water.

Pruning: None

Propagation: Seed, not known to be self fertile.

Disease and pests: Root rot in poorly drained soil.

Additional comments: Brain cactus is weird looking, a real oddity plant for creating interest in small Phoenix cactus gardens. The genus Stenocactus contains 10 species and is closely related to Ferrocactus.