Also known as the ‘Button Cactus,’ Epithelantha micromeris subsp. greggii is actually the largest of the Epithelantha micromeris subspecies, believe it or not! This diminuative cactus grows on hills with low slopes, forming clusters over time. You will receive a healthy Epithelantha micromeris subsp. greggii in a 2-inch plastic pot. Care We recommend plenty of sun for compact growth, or partial shade if the sun is particularly harsh. Plant in fast-draining soil, and water thoroughly when the soil is completely dry.