The rare plant Red-Headed Irishman Cactus (Mammillaria spinosissima) is a highly collectible cactus admired for its bold color and unique look. This 4” potted cactus has a green cylindrical stem covered in dense tubercles, each tipped with copper to bright red spines that create a fiery crown as it matures. In spring and early summer, it often produces vibrant magenta blooms that add even more interest. Native to central Mexico, this cactus is slow-growing and compact, making it perfect for windowsills, shelves, and indoor collections. Because it cannot be found in nurseries, it is a sought-after plant for collectors searching for something rare and distinctive.
The Red-Headed Irishman Cactus is easy to care for and thrives in bright light with several hours of direct sun. Plant it in a gritty, well-draining cactus soil and water only when the soil is completely dry. During the winter months, watering should be reduced to encourage a natural rest period. Fertilizing with trace amounts at every watering will support strong growth and flowering. With its colorful spines, seasonal blooms, and rare status, this exotic cactus is a must-have for anyone looking to add a standout piece to their collection of rare cacti and succulents.
