Red-headed Irishman (Mammillaria spinosissima)

Red-headed Irishman is a columnar cactus that forms dense clusters of cylindrical stems covered in reddish-brown spines, giving the top a distinctive "red head." It produces rings of small, pink to carmine flowers around the crown in spring.

Botanical Profile

Care Guide

Bright light and well-draining cactus mix. Water regularly in summer, keep dry in winter. The reddish spines are most vibrant in strong light. Forms impressive clumps over time. Easy to grow and flower. A classic mammillaria for collectors.