Haage mammillaria (Mammillaria haageana) originated in Mexico. The first species was described by Carl Linnaeus in 1753. The genus Mammillaria is currently one of the largest in the cactus family, with 171 known species and varieties. This amazing plant, with its cylindrical form and bright carmine rose flowers, is a showstopper of a cactus. The top of each cylinder is crowned with bright, funnel-shaped flowers in a circle surrounding the center. This small gem only grows up to 6 inches tall and 4 inches wide. Its outer spines are short and white, and the inner spines are longer and black. Spine groups on the side are arranged in a closely spaced, spiral pattern (instead of vertically).

This genus has an unusual approach to plant metabolism, absorbing carbon dioxide at night and re-emitting it during the day in a way that improves photosynthesis—a trait these cacti have in common with pineapples. A late-winter bloomer, haage mammillaria should be watered sparingly and grown in light shade with good drainage. Recommended for USDA Zones 9b to 11, this plant is hardy to 25 degrees Fahrenheit.