3.5" Mammillaria spinosissima"Red-headed Irishman"
Globular at first, Mammillaria spinosissima grows to 8" in height, forming clumps of columns densely spined with reddish-orange spines. Closely related to Mammillaria pilcayensis. Vivid majenta flowers encircle the columns of bright orange in late winter and spring, providing a startling contrast. Native to Guerrero, Mexico. Requires porous cactus soil with adequate drainage. Bright light with ample airflow. Water thoroughly when soil is dry to the touch. Protect from frost.