Rare Purple Moon Cactus Gymnocalycium Mihanovichii Small . Growing in a 2.5" pot. Moon cactus are lacking chlorophyll which results in a dark purple coloration. These are grafted onto other fast growing cacti. Easy to grow, do well in succulent gardens or in a window sill. They like fast draining soil, bright light(Filtered sun or shade), water only when the soil dries
