Cactus- Stenocactus sp. 'RI8'| deep tuberous roots (3" pot)

Stenocactus sp. 'RI8' is a compact, slow-growing collector's form with deeply wavy ribs and a neat, spherical habit that stays manageable at around 8 inches. To thrive and flower reliably, it requires strong light, marked day-to-night temperature swings, and a cool, dry winter rest—conditions that bring out its best form and encourage its pink late-spring blooms. Grow it in a gritty, fast-draining mix, water thoroughly in summer but let the soil dry completely between waterings, and keep it bone-dry in winter; when kept dry, it is hardy to at least 20°F (-7°C), with some reports suggesting it can handle even lower.