Mammillaria celsiana, native to Mexico (San Luis Potosi southward to Oaxaca), is a globular cactus to 8" in diameter. Beautiful golden radial spines, with long gold centrals and white woolly areoles Rings of small carmine flowers in spring. Requires excellent drainage provided by porous cactus soil. Prefers bright light and ample airflow. Water thoroughly when soil is dry to the touch. Protect from frost. 4 inch pot.